Add screenshots for use cases (#71)

diff --git a/README.md b/README.md
index 62df566..a8ed9a3 100644
--- a/README.md
+++ b/README.md
@@ -378,48 +378,14 @@
 
 ```shell
 $ ./bin/swctl --display=graph metrics linear --name=service_instance_resp_time --service "load balancer1.system"
-┌─────────────────────────────────────────────────────────────────────────────────Press q to quit──────────────────────────────────────────────────────────────────────────────────┐
-│                                                                                                                                                                                  │
-│                                                                                                                                                                                  │
-│         │                                                                                                                                                    ⡜⠢⡀                 │
-│  1181.80│                                      ⡰⡀                                                         ⢀⡠⢢         ⡰⢣                                    ⡰⠁ ⠈⠢⡀               │
-│         │                                     ⢠⠃⠱⡀              ⡀                                       ⢀⠔⠁  ⠱⡀     ⢀⠜  ⢣                        ⢀⠞⡄       ⢠⠃    ⠈⠢⡀             │
-│         │                                     ⡎  ⠱⡀          ⢀⠔⠊⠱⡀                 ⢀⣀⣀⣀              ⢀⡠⠊⠁     ⠘⢄   ⢀⠎    ⢣                      ⡠⠃ ⠘⡄      ⡎       ⠈⠑⠢⢄⡀  ⢀⡠⠔⠊⠁  │
-│         │          ⢀⠤⣀⡀       ⢀⡀             ⡸    ⢣        ⡠⠔⠁   ⠱⡀            ⡠⠊⠉⠉⠁   ⠉⠉⠒⠒⠤⠤⣀⣀⣀ ⢀⡠⠔⠊⠁          ⠣⡀⡠⠃      ⢣           ⢀⠔⠤⡀     ⡰⠁   ⠘⡄    ⡜            ⠈⠑⠊⠁      │
-│  1043.41│⡀       ⢀⠔⠁  ⠈⠑⠒⠤⠔⠒⠊⠉⠁⠈⠒⢄          ⢀⠇     ⢣    ⢀⠤⠊       ⠱⡀         ⢀⠔⠁                ⠉⠁               ⠑⠁        ⢣         ⡠⠃  ⠈⠒⢄ ⢀⠜      ⠘⡄  ⢰⠁                      │
-│         │⠈⠑⠤⣀   ⡠⠊                ⠑⠤⡀       ⡜       ⢣ ⣀⠔⠁          ⠱⡀       ⡰⠁                                              ⠣⢄⣀    ⢠⠊       ⠉⠊        ⠘⡄⢠⠃                       │
-│         │    ⠑⠢⠊                    ⠈⠢⡀    ⢰⠁        ⠋              ⠱⡀  ⣀⠤⠔⠊                                                   ⠉⠒⠢⠔⠁                   ⠘⠎                        │
-│         │                             ⠈⠢⡀ ⢀⠇                         ⠑⠊⠉                                                                                                         │
-│      905│                               ⠈⠢⡜                                                                                                                                      │
-│         └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────  │
-│          2019-12-02 2121   2019-12-02 2107   2019-12-02 2115   2019-12-02 2119   2019-12-02 2137   2019-12-02 2126   2019-12-02 2118   2019-12-02 2128   2019-12-02 2136         │
-│                                                                                                                                                                                  │
-│                                                                                                                                                                                  │
-└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
 ```
 
+![](http://skywalking.apache.org/screenshots/cli/metrics-linear.png)
+
 otherwise
 
 ```shell
-$ ./bin/swctl instance ls --service-name=projectC | jq '.[] | select(.name == "projectC-pid:7895@skywalking-server-0001").id' | xargs ./bin/swctl --display=graph metrics linear --name=service_instance_resp_time --id
-┌─────────────────────────────────────────────────────────────────────────────────Press q to quit──────────────────────────────────────────────────────────────────────────────────┐
-│                                                                                                                                                                                  │
-│                                                                                                                                                                                  │
-│         │                                                                           ⡠⠒⢣                                                                                          │
-│  1181.80│                          ⡠⠊⢢                                           ⣀⠔⠉   ⢣              ⡔⡄                               ⡔⡄                                        │
-│         │           ⣀            ⡠⠊   ⠑⡄                                    ⣀⡠⠔⠒⠉       ⢣            ⡜ ⠈⢆                            ⢀⠎ ⠈⢢              ⡀                        │
-│         │          ⡜ ⠉⠒⠤⣀   ⢀⣀⣀⡠⠊      ⠈⠢⡀               ⢀⡠⢄⣀⡀            ⡰⠉             ⢣          ⡜    ⢣                          ⡠⠃    ⠑⡄        ⢀⡠⠔⠉⠘⢄                       │
-│         │        ⢀⠜      ⠉⠉⠉⠁            ⠑⢄          ⢀⡠⠔⠊⠁   ⠈⠉⠑⢢        ⡰⠁               ⢣       ⢀⠎      ⠱⡀          ⢀⠦⡀         ⢀⠜       ⠈⢢ ⢀⣀⣀⡠⠤⠒⠁     ⠣⡀                  ⡀  │
-│  1043.41│       ⢀⠎                         ⠑⢄      ⢀⠔⠁           ⠱⡀     ⡰⠁                 ⢣⣀    ⢀⠎        ⠘⢄        ⢀⠎ ⠈⢢      ⢀⠤⠊          ⠉⠁            ⠘⢄               ⡠⠊   │
-│         │      ⢠⠃                           ⠈⠢⡀  ⡠⠒⠁              ⠘⢄   ⡰⠁                    ⠉⠉⠉⠒⠊          ⠈⢢      ⢀⠎    ⠑⢄  ⡠⠒⠁                            ⠣⠤⣀⣀⣀       ⢀⠔⠉     │
-│         │⠤⠤⠤⠤⠤⠤⠃                              ⠈⠢⠊                   ⠣⡀⡰⠁                                      ⠱⡀   ⢀⠎       ⠑⠉                                    ⠉⠉⠉⠉⠒⠒⠒⠁       │
-│         │                                                            ⠑⠁                                        ⠑⡄ ⢀⠎                                                             │
-│      905│                                                                                                       ⠈⢆⠎                                                              │
-│         └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────  │
-│          2019-12-02 2122   2019-12-02 2137   2019-12-02 2136   2019-12-02 2128   2019-12-02 2108   2019-12-02 2130   2019-12-02 2129   2019-12-02 2115   2019-12-02 2119         │
-│                                                                                                                                                                                  │
-│                                                                                                                                                                                  │
-└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+$ ./bin/swctl instance ls --service-name=projectC | jq '.[] | select(.name == "projectC-pid:7895@skywalking-server-0001").id' | xargs ./bin/swctl --display=graph metrics linear --name=service_instance_resp_time --service-id
 ```
 
 </details>
@@ -447,70 +413,14 @@
 </details>
 
 <details>
-
 <summary>Query multiple metrics values for all percentiles</summary>
 
 ```shell
 $ ./bin/swctl --display=graph --debug metrics multiple-linear --name all_percentile
-
-┌PRESS Q TO QUIT───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│┌───────────────────────────────#0───────────────────────────────┐┌───────────────────────────────#1───────────────────────────────┐┌─────────────────────────────────#2─────────────────────────────────┐│
-││      │  ⡏⠉⠉⢹   ⢸⠉⠉⠉⠉⠉⠉⠉⠉⠉⠉⠉⠉⡇      ⢸⠉⠉⠉⠉⠉⠉⠉⡇  ⢸⠉⠉⠉⠉⠉⠉⠉⡇   ⡏⠉⠉⠉ ││       │     ⢸⡀                       ⢸        ⢸        ⡇       ││        │                                                  ⡠⠔⡇      ││
-││960.80│ ⢀⠇  ⠘⡄  ⡜            ⢣      ⢸       ⢇  ⢸       ⡇   ⡇    ││1963.60│     ⡜⡇                       ⢸        ⢸       ⢠⡇       ││ 2600.40│                                                  ⡇ ⢣      ││
-││      │ ⢸    ⡇  ⡇            ⢸      ⢸       ⢸  ⡜       ⢸  ⢸     ││       │     ⡇⢸                       ⡼⡀       ⣾       ⢸⢣       ││        │                                                 ⢸  ⢸      ││
-││      │ ⢸    ⡇  ⡇            ⢸      ⡸       ⢸  ⡇       ⢸  ⢸     ││       │     ⡇⠈⡆                      ⡇⡇       ⡇⡇      ⢸⢸       ││        │                                                 ⢸  ⢸      ││
-││      │ ⢸    ⢣ ⢠⠃            ⠘⡄     ⡇       ⢸  ⡇       ⢸  ⢸     ││       │    ⢰⠁ ⡇                      ⡇⡇  ⡤⢤   ⡇⡇      ⡇⢸       ││        │                                                 ⡇  ⠘⡄     ││
-││824.64│ ⡇    ⢸ ⢸              ⡇     ⡇       ⠈⡆ ⡇       ⠘⡄ ⡜     ││1832.88│    ⢸  ⢣                      ⡇⡇  ⡇⢸   ⡇⡇      ⡇⢸       ││ 2486.33│                                                 ⡇   ⡇     ││
-││      │ ⡇    ⢸ ⢸              ⡇     ⡇        ⡇ ⡇        ⡇ ⡇     ││       │    ⢸  ⢸                      ⡇⡇ ⢸ ⠈⡆ ⢀⠇⡇     ⢠⠃⢸       ││        │                                                ⢰⠁   ⡇     ││
-││      │ ⡇    ⠈⡆⡎              ⢣     ⡇        ⡇⢸         ⡇ ⡇     ││       │    ⡎  ⢸                     ⢰⠁⡇ ⢸  ⡇ ⢸ ⡇     ⢸ ⠘⡄      ││        │                       ⡀        ⢸⠉⠲⡀  ⢀         ⢸    ⢱     ││
-││      │⢰⠁     ⡇⡇              ⢸     ⡇        ⢇⢸         ⡇ ⡇     ││       │    ⡇  ⢸                     ⢸ ⢱ ⢸  ⡇ ⢸ ⢣     ⢸  ⡇      ││        │⡀                     ⢰⢱    ⢀⡄  ⡇  ⢱ ⢀⠎⡆        ⡎    ⢸  ⣀⠤ ││
-││688.48│⢸      ⡇⡇              ⢸     ⡇        ⢸⢸         ⢸⢸      ││1702.16│    ⡇   ⡇                    ⢸ ⢸ ⡇  ⢣ ⢸ ⢸     ⡜  ⡇      ││ 2372.24│⠱⡀       ⡴⡀  ⢀       ⢠⠃⠈⡆  ⢀⠎⠸⡀⢠⠃   ⢣⠎ ⢸  ⣠    ⡠⠃    ⢸ ⢰⠁  ││
-││      │⢸      ⢱⠁              ⠘⡄    ⡇        ⢸⢸         ⢸⢸      ││       │   ⢸    ⡇                    ⢸ ⢸ ⡇  ⢸ ⢸ ⢸     ⡇  ⡇      ││        │ ⢣      ⡜ ⠱⡀⡠⠋⡆     ⣀⠎  ⢱ ⡠⠊  ⢣⢸        ⢇⡔⠁⢣ ⣀⠔⠁     ⠈⣦⠃   ││
-││      │⡜      ⠸                ⡇   ⢸         ⢸⡜         ⢸⢸      ││       │   ⢸    ⡇       ⡆     ⢀⡆     ⢸ ⢸⢀⠇  ⢸ ⡎ ⢸     ⡇  ⡇      ││        │  ⡇   ⡔⠊   ⠑⠁ ⠸⡀  ⢠⠋    ⠈⠖⠁   ⠈⠇        ⠈   ⠉         ⠏    ││
-││      │⡇                       ⢣   ⢸         ⠈⡇         ⠘⡜      ││       │   ⡜    ⢱      ⢠⢣  ⢰⢄ ⡜⢸     ⡇ ⢸⢸   ⢸ ⡇ ⢸    ⢠⠃  ⢱      ││        │  ⢇   ⡇        ⢣⡀ ⡎                                        ││
-││552.32│⠁                       ⠸⡀  ⢸          ⡇          ⡇      ││1571.44│   ⡇    ⢸      ⢸⢸  ⡸ ⠙ ⠘⡄    ⡇ ⠘⣼    ⡇⡇ ⢸    ⢸   ⢸      ││ 2258.16│  ⢸  ⢸          ⠈⠙                                         ││
-││      │                         ⢇  ⢸                     ⠁      ││       │  ⢀⠇    ⢸      ⡜⢸  ⡇    ⢇    ⡇  ⡿    ⡇⡇  ⡇   ⢸   ⢸      ││        │  ⢸  ⢸                                                     ││
-││      │                         ⢸  ⢸                            ││       │⢣ ⢸     ⠸⡀     ⡇ ⡇ ⡇    ⢸    ⡇  ⡇    ⣇⠇  ⡇   ⡜   ⢸      ││        │  ⠈⡆ ⡜                                                     ││
-││      │                          ⡇ ⢸                            ││       │⠈⢆⡸      ⡇⢀   ⢠⠃ ⡇⢀⠇    ⠈⡦⠔⢇⢀⠇  ⠁    ⢹   ⡇   ⡇   ⢸      ││        │   ⡇ ⡇                                                     ││
-││416.16│                          ⢱ ⢸                            ││1440.72│ ⠘⡇      ⠋⠙⡄  ⢸  ⢱⢸        ⠸⣸        ⢸   ⠱⡀  ⡇   ⠈⡆     ││2144.080│   ⡇ ⡇                                                     ││
-││      │                          ⠘⡄⡎                            ││       │           ⢇  ⡎  ⢸⢸         ⢿             ⠱⡀⢠⠃    ⡇     ││        │   ⢸⢸                                                      ││
-││      │                           ⡇⡇                            ││       │           ⢸ ⢰⠁  ⠸⡜         ⠈              ⠘⣼     ⠧⣀    ││        │   ⢸⢸                                                      ││
-││      │                           ⢸⡇                            ││       │            ⡇⡎    ⡇                         ⠈       ⠑⢄  ││        │   ⠘⡜                                                      ││
-││   280│                           ⠈⡇                            ││   1310│            ⢱⠁                                          ││    2030│    ⡇                                                      ││
-││      └─────────────────────────────────────────────────────────││       └────────────────────────────────────────────────────────││        └───────────────────────────────────────────────────────────││
-││       2020-03-07 0111   2020-03-07 0134   2020-03-07 0133      ││        2020-03-07 0116   2020-03-07 0121   2020-03-07 0122     ││         2020-03-07 0123   2020-03-07 0139   2020-03-07 0117        ││
-│└────────────────────────────────────────────────────────────────┘└────────────────────────────────────────────────────────────────┘└────────────────────────────────────────────────────────────────────┘│
-│┌────────────────────────────────────────────────#3─────────────────────────────────────────────────┐┌────────────────────────────────────────────────#4─────────────────────────────────────────────────┐│
-││       │                                           ⢀⢇                                              ││        │⠤⠤⠤⠤⠤⠤⡄     ⡤⠤⢤        ⢸⠑⠒⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠒⠊⠉⠉⠉⠉⠉⠉⠉⠒⠢⡄     ⡤⠒⠊⡇       ⢠⠔⠒⢹           ⢠⠔⠒⠉⠑⠢⠄ ││
-││       │                                           ⡸⠸⡀               ⢀⡆                            ││        │      ⡇     ⡇ ⢸        ⡸                          ⡇     ⡇  ⢇       ⢸  ⢸           ⢸       ││
-││3559.60│                                          ⢀⠇ ⢇              ⢀⠎⢸                            ││54073.20│      ⢱    ⢰⠁ ⠈⡆       ⡇                          ⢱    ⢰⠁  ⢸       ⡜   ⡇          ⡎       ││
-││       │           ⢀⢄                             ⡸  ⠸⡀            ⢀⠎ ⠘⡄                           ││        │      ⢸    ⢸   ⡇       ⡇                          ⢸    ⢸   ⢸       ⡇   ⡇          ⡇       ││
-││       │          ⢀⠎ ⠑⢄                          ⢀⠇   ⢇           ⢀⠎   ⡇         ⣼                 ││        │      ⢸    ⢸   ⡇       ⡇                          ⢸    ⢸   ⢸       ⡇   ⡇          ⡇       ││
-││       │         ⢀⠎   ⠈⢆                      ⣀  ⡸    ⠸⡀ ⣀⡀       ⡜    ⢸        ⡸⠸⡀                ││        │      ⠸⡀   ⡸   ⢇      ⢰⠁                          ⠸⡀   ⡸   ⠈⡆      ⡇   ⢣         ⢀⠇       ││
-││3325.68│   ⣀⣀  ⣀⠤⠊     ⠘⡄   ⢀⣀⣀⣀⣀⡠⠤⡀      ⢀⣀⠔⠊ ⠉⠑⠃     ⠉⠉ ⠘⢄     ⡰⠁    ⠘⡄      ⢰⠁ ⡇       ⢀⣀⡠⠤⠤⠤⠄  ││43924.56│       ⡇   ⡇   ⢸      ⢸                            ⡇   ⡇    ⡇     ⢰⠁   ⢸         ⢸        ││
-││       │ ⢠⠊  ⠉⠉         ⠸⡀ ⡔⠁      ⠑⢄  ⡠⠊⠉⠁                 ⠣⣀  ⢠⠃      ⡇     ⢠⠃  ⡇    ⢀⠤⠊⠁        ││        │       ⡇   ⡇   ⢸      ⢸                            ⡇   ⡇    ⡇     ⢸    ⢸         ⢸        ││
-││       │⠔⠁               ⠱⠊         ⠈⠢⠊                       ⠉⠒⠎       ⠸⠤⠤⠤⠔⠊⠁   ⢇    ⢸           ││        │       ⡇   ⡇   ⢸      ⡸                            ⡇   ⡇    ⢇     ⢸    ⢸         ⢸        ││
-││       │                                                                          ⢸    ⡎           ││        │       ⢱  ⢰⠁   ⠈⡆     ⡇                            ⢸  ⢸     ⢸     ⢸     ⡇        ⡎        ││
-││3091.76│                                                                          ⢸    ⡇           ││33775.92│       ⢸  ⢸     ⡇     ⡇                            ⢸  ⢸     ⢸     ⡇     ⡇        ⡇        ││
-││       │                                                                          ⢸   ⢀⠇           ││        │       ⢸  ⢸     ⡇     ⡇                            ⢸  ⢸     ⢸     ⡇     ⡇        ⡇        ││
-││       │                                                                           ⡇  ⢸            ││        │       ⠸⡀ ⡸     ⢇    ⢰⠁                            ⠘⡄ ⡜     ⠈⡆    ⡇     ⢣       ⢠⠃        ││
-││       │                                                                           ⡇  ⢸            ││        │        ⡇ ⡇     ⢸    ⢸                              ⡇ ⡇      ⡇   ⢠⠃     ⢸       ⢸         ││
-││2857.84│                                                                           ⡇  ⡎            ││23627.28│        ⡇ ⡇     ⢸    ⢸                              ⡇ ⡇      ⡇   ⢸      ⢸       ⢸         ││
-││       │                                                                           ⢸  ⡇            ││        │        ⡇ ⡇     ⢸    ⡸                              ⢇⢀⠇      ⢇   ⢸      ⢸       ⢸         ││
-││       │                                                                           ⢸ ⢀⠇            ││        │        ⢱⢰⠁     ⠈⡆   ⡇                              ⢸⢸       ⢸   ⢸       ⡇      ⡇         ││
-││       │                                                                           ⢸ ⢸             ││        │        ⢸⢸       ⡇   ⡇                              ⢸⢸       ⢸   ⡎       ⡇      ⡇         ││
-││2623.92│                                                                           ⠈⡆⢸             ││13478.64│        ⢸⢸       ⡇   ⡇                              ⢸⢸       ⢸   ⡇       ⡇      ⡇         ││
-││       │                                                                            ⡇⡎             ││        │        ⠸⡸       ⢇  ⢰⠁                              ⠈⡎       ⠈⡆  ⡇       ⢣     ⢠⠃         ││
-││       │                                                                            ⡇⡇             ││        │         ⡇       ⢸  ⣸                                ⡇        ⡇  ⡇       ⢸     ⢸          ││
-││       │                                                                            ⢱⠇             ││        │         ⠃       ⠘⠊⠉                                          ⠘⡄⢸        ⠘⠒⠊⠉⠉⠉⠉          ││
-││   2390│                                                                            ⢸              ││    3330│                                                               ⠈⢾                         ││
-││       └───────────────────────────────────────────────────────────────────────────────────────────││        └──────────────────────────────────────────────────────────────────────────────────────────││
-││        2020-03-07 0115   2020-03-07 0139   2020-03-07 0134   2020-03-07 0136   2020-03-07 0132    ││         2020-03-07 0115   2020-03-07 0126   2020-03-07 0112   2020-03-07 0134   2020-03-07 0124   ││
-│└───────────────────────────────────────────────────────────────────────────────────────────────────┘└───────────────────────────────────────────────────────────────────────────────────────────────────┘│
-└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
-
 ```
 
+![](http://skywalking.apache.org/screenshots/cli/metrics-multiple-linear.png)
+
 </details>
 
 <details>
@@ -559,16 +469,7 @@
 $ ./bin/swctl --display=graph metrics thermodynamic
 ```
 
-</details>
-
-<details>
-
-<summary>Query the data of global dashboard</summary>
-
-```shell
-$ ./bin/swctl db g
-{"metrics":[[{"name":"projectC.business-zone","id":"","value":"210","refId":null},{"name":"projectD.business-zone","id":"","value":"198","refId":null},{"name":"projectB.business-zone","id":"","value":"198","refId":null},{"name":"load balancer1.system","id":"","value":"197","refId":null},{"name":"load balancer2.system","id":"","value":"197","refId":null},{"name":"projectA.business-zone","id":"","value":"197","refId":null}],[{"name":"projectC.business-zone","id":"","value":"4576","refId":null},{"name":"load balancer1.system","id":"","value":"2001","refId":null},{"name":"load balancer2.system","id":"","value":"2000","refId":null},{"name":"projectA.business-zone","id":"","value":"1996","refId":null},{"name":"projectB.business-zone","id":"","value":"639","refId":null},{"name":"projectD.business-zone","id":"","value":"0","refId":null}],[{"name":"load balancer2.system","id":"","value":"3086","refId":null},{"name":"projectA.business-zone","id":"","value":"3086","refId":null},{"name":"load balancer1.system","id":"","value":"3087","refId":null},{"name":"projectC.business-zone","id":"","value":"4725","refId":null},{"name":"projectB.business-zone","id":"","value":"7453","refId":null},{"name":"projectD.business-zone","id":"","value":"10000","refId":null}],[{"name":"projectC.business-zone - /projectC/{value}","id":"","value":"4576","refId":null},{"name":"projectA.business-zone - /projectA/{name}","id":"","value":"1998","refId":null},{"name":"load balancer1.system - /projectA/test","id":"","value":"1997","refId":null},{"name":"load balancer2.system - /projectA/test","id":"","value":"1997","refId":null},{"name":"projectB.business-zone - /projectB/{value}","id":"","value":"639","refId":null},{"name":"projectD.business-zone - Kafka/test-trace-topic/Consumer/test","id":"","value":"0","refId":null}]],"responseLatency":[{"2020-10-08 1911":1130,"2020-10-08 1912":1100,"2020-10-08 1913":1130,"2020-10-08 1914":1130,"2020-10-08 1915":1120,"2020-10-08 1916":1130,"2020-10-08 1917":1120,"2020-10-08 1918":1120,"2020-10-08 1919":1120,"2020-10-08 1920":1130,"2020-10-08 1921":1120,"2020-10-08 1922":1120,"2020-10-08 1923":1130,"2020-10-08 1924":1130,"2020-10-08 1925":1130,"2020-10-08 1926":1130,"2020-10-08 1927":1130,"2020-10-08 1928":1130,"2020-10-08 1929":1130,"2020-10-08 1930":1120,"2020-10-08 1931":1130,"2020-10-08 1932":1130,"2020-10-08 1933":1130,"2020-10-08 1934":1120,"2020-10-08 1935":1100,"2020-10-08 1936":1130,"2020-10-08 1937":1120,"2020-10-08 1938":1130,"2020-10-08 1939":1120,"2020-10-08 1940":1130,"2020-10-08 1941":1110},{"2020-10-08 1911":2130,"2020-10-08 1912":2130,"2020-10-08 1913":2130,"2020-10-08 1914":2130,"2020-10-08 1915":2130,"2020-10-08 1916":2130,"2020-10-08 1917":2120,"2020-10-08 1918":2130,"2020-10-08 1919":2130,"2020-10-08 1920":2130,"2020-10-08 1921":2120,"2020-10-08 1922":2120,"2020-10-08 1923":2130,"2020-10-08 1924":2120,"2020-10-08 1925":2130,"2020-10-08 1926":2130,"2020-10-08 1927":2130,"2020-10-08 1928":2170,"2020-10-08 1929":2130,"2020-10-08 1930":2120,"2020-10-08 1931":2130,"2020-10-08 1932":2130,"2020-10-08 1933":2130,"2020-10-08 1934":2020,"2020-10-08 1935":2130,"2020-10-08 1936":2130,"2020-10-08 1937":2130,"2020-10-08 1938":2130,"2020-10-08 1939":2130,"2020-10-08 1940":2130,"2020-10-08 1941":2020},{"2020-10-08 1911":3130,"2020-10-08 1912":3130,"2020-10-08 1913":3130,"2020-10-08 1914":3130,"2020-10-08 1915":3130,"2020-10-08 1916":3130,"2020-10-08 1917":3120,"2020-10-08 1918":3150,"2020-10-08 1919":3130,"2020-10-08 1920":3130,"2020-10-08 1921":3130,"2020-10-08 1922":3130,"2020-10-08 1923":3130,"2020-10-08 1924":3130,"2020-10-08 1925":3130,"2020-10-08 1926":3130,"2020-10-08 1927":3160,"2020-10-08 1928":3160,"2020-10-08 1929":3130,"2020-10-08 1930":3120,"2020-10-08 1931":3130,"2020-10-08 1932":3130,"2020-10-08 1933":3130,"2020-10-08 1934":3130,"2020-10-08 1935":3130,"2020-10-08 1936":3130,"2020-10-08 1937":3130,"2020-10-08 1938":3130,"2020-10-08 1939":3130,"2020-10-08 1940":3130,"2020-10-08 1941":3130},{"2020-10-08 1911":3190,"2020-10-08 1912":3210,"2020-10-08 1913":3290,"2020-10-08 1914":3220,"2020-10-08 1915":3260,"2020-10-08 1916":3270,"2020-10-08 1917":3230,"2020-10-08 1918":3280,"2020-10-08 1919":3260,"2020-10-08 1920":3230,"2020-10-08 1921":3180,"2020-10-08 1922":3200,"2020-10-08 1923":3210,"2020-10-08 1924":3190,"2020-10-08 1925":3440,"2020-10-08 1926":3190,"2020-10-08 1927":3240,"2020-10-08 1928":3210,"2020-10-08 1929":3260,"2020-10-08 1930":3200,"2020-10-08 1931":3240,"2020-10-08 1932":3280,"2020-10-08 1933":3200,"2020-10-08 1934":3200,"2020-10-08 1935":3260,"2020-10-08 1936":3230,"2020-10-08 1937":3360,"2020-10-08 1938":3200,"2020-10-08 1939":5190,"2020-10-08 1940":3180,"2020-10-08 1941":3170},{"2020-10-08 1911":60020,"2020-10-08 1912":8220,"2020-10-08 1913":60020,"2020-10-08 1914":60020,"2020-10-08 1915":60020,"2020-10-08 1916":60020,"2020-10-08 1917":60020,"2020-10-08 1918":60020,"2020-10-08 1919":60020,"2020-10-08 1920":60020,"2020-10-08 1921":60030,"2020-10-08 1922":60020,"2020-10-08 1923":8180,"2020-10-08 1924":8130,"2020-10-08 1925":60020,"2020-10-08 1926":8160,"2020-10-08 1927":60020,"2020-10-08 1928":8170,"2020-10-08 1929":60020,"2020-10-08 1930":60020,"2020-10-08 1931":60020,"2020-10-08 1932":8140,"2020-10-08 1933":8140,"2020-10-08 1934":8160,"2020-10-08 1935":60060,"2020-10-08 1936":60020,"2020-10-08 1937":60020,"2020-10-08 1938":60020,"2020-10-08 1939":60020,"2020-10-08 1940":8130,"2020-10-08 1941":7190}],"heatMap":{"values":[{"id":"202010081911","values":[279,171,20,0,0,0,0,1,0,0,71,247,48,11,0,0,0,0,0,1,394]},{"id":"202010081912","values":[278,226,31,0,1,0,0,0,0,0,65,223,27,0,0,0,0,0,0,0,400]},{"id":"202010081913","values":[268,156,25,1,0,0,0,0,0,0,62,257,27,9,0,0,0,0,0,0,399]},{"id":"202010081914","values":[265,143,13,6,0,0,0,0,0,1,72,263,23,4,3,0,0,0,3,3,404]},{"id":"202010081915","values":[269,166,25,0,0,0,0,1,0,1,68,232,33,6,0,0,0,0,0,0,403]},{"id":"202010081916","values":[246,141,17,3,0,0,0,0,0,0,61,255,29,8,1,0,0,0,0,0,410]},{"id":"202010081917","values":[267,182,27,0,0,0,0,0,0,0,73,248,29,4,0,0,0,0,0,0,393]},{"id":"202010081918","values":[278,192,22,5,0,0,0,0,1,0,55,241,39,1,0,0,0,0,3,0,398]},{"id":"202010081919","values":[276,165,37,4,0,0,0,0,0,1,57,268,21,3,6,0,0,0,0,0,383]},{"id":"202010081920","values":[267,181,18,0,0,0,0,0,0,0,77,259,45,3,0,0,0,0,0,0,390]},{"id":"202010081921","values":[286,169,11,12,0,0,0,0,0,0,54,264,41,14,1,0,0,0,1,3,383]},{"id":"202010081922","values":[268,178,9,0,0,3,0,0,0,0,66,268,23,3,0,1,0,0,1,1,400]},{"id":"202010081923","values":[267,169,8,0,0,0,0,0,0,0,63,284,22,0,0,0,0,0,0,0,403]},{"id":"202010081924","values":[264,174,3,0,0,0,0,0,0,0,72,292,23,0,0,0,0,0,0,0,385]},{"id":"202010081925","values":[254,189,7,0,0,0,0,0,0,0,73,238,21,0,0,0,0,0,0,0,416]},{"id":"202010081926","values":[247,136,12,0,0,0,0,0,0,0,65,257,16,5,0,0,0,0,0,0,427]},{"id":"202010081927","values":[260,135,17,3,0,0,0,1,0,0,53,244,40,3,1,3,0,3,0,0,412]},{"id":"202010081928","values":[258,116,33,3,0,0,0,0,0,0,66,253,45,4,0,0,0,0,0,0,405]},{"id":"202010081929","values":[258,190,17,0,0,0,0,0,0,0,59,214,24,4,0,0,0,0,0,0,438]},{"id":"202010081930","values":[278,197,11,4,0,0,0,0,0,0,70,254,29,0,0,0,0,0,0,0,399]},{"id":"202010081931","values":[277,184,14,0,0,0,0,0,0,0,58,253,29,3,0,0,3,1,3,0,410]},{"id":"202010081932","values":[254,169,5,0,0,0,0,0,0,0,65,217,45,10,0,0,0,5,0,0,405]},{"id":"202010081933","values":[270,152,15,1,0,0,0,0,0,0,65,284,25,0,0,0,0,0,0,0,407]},{"id":"202010081934","values":[271,188,15,0,0,0,0,0,0,0,74,308,8,9,0,0,0,0,0,0,363]},{"id":"202010081935","values":[283,174,39,7,0,0,0,0,0,0,63,254,38,2,0,0,0,0,0,0,385]},{"id":"202010081936","values":[259,150,18,3,0,0,0,0,0,0,85,260,28,0,0,0,0,0,0,0,399]},{"id":"202010081937","values":[264,191,21,1,0,0,0,1,0,0,67,226,15,1,0,0,1,3,1,3,417]},{"id":"202010081938","values":[265,175,13,0,0,0,0,0,0,0,53,259,29,3,0,0,0,0,0,0,392]},{"id":"202010081939","values":[272,191,13,0,0,0,0,0,0,0,67,267,19,3,0,0,0,0,0,0,394]},{"id":"202010081940","values":[254,136,23,0,0,0,0,0,0,0,67,274,20,2,0,0,0,0,0,0,398]},{"id":"202010081941","values":[216,141,3,0,0,0,0,0,1,0,47,205,14,4,0,0,0,0,3,1,260]}],"buckets":[{"min":"0","max":"100"},{"min":"100","max":"200"},{"min":"200","max":"300"},{"min":"300","max":"400"},{"min":"400","max":"500"},{"min":"500","max":"600"},{"min":"600","max":"700"},{"min":"700","max":"800"},{"min":"800","max":"900"},{"min":"900","max":"1000"},{"min":"1000","max":"1100"},{"min":"1100","max":"1200"},{"min":"1200","max":"1300"},{"min":"1300","max":"1400"},{"min":"1400","max":"1500"},{"min":"1500","max":"1600"},{"min":"1600","max":"1700"},{"min":"1700","max":"1800"},{"min":"1800","max":"1900"},{"min":"1900","max":"2000"},{"min":"2000","max":"infinite+"}]}}
-```
+![heatmap](http://skywalking.apache.org/screenshots/cli/heatmap.png)
 
 </details>
 
@@ -577,9 +478,11 @@
 <summary>Display the spans of a trace</summary>
 
 ```shell
-$ ./bin/swctl --display graph trace 1585375544413.464998031.46647
+$ ./bin/swctl --display graph trace 07841b21-c8ed-4ace-851f-5cf0a635dc9f
 ```
 
+![](http://skywalking.apache.org/screenshots/cli/trace.png)
+
 </details>
 
 <details>
@@ -587,9 +490,11 @@
 <summary>Display the traces</summary>
 
 ```shell
-$ ./bin/swctl --display graph trace ls --start='2020-08-13 1754' --end='2020-08-20 2020'  --tags='http.method=POST'
+$ ./bin/swctl --display graph trace ls
 ```
 
+![](http://skywalking.apache.org/screenshots/cli/trace-ls.png)
+
 </details>
 
 <details>
@@ -600,6 +505,12 @@
 $ ./bin/swctl --display graph db g
 ```
 
+![](http://skywalking.apache.org/screenshots/cli/dashboard-1.png)
+
+![](http://skywalking.apache.org/screenshots/cli/dashboard-2.png)
+
+![](http://skywalking.apache.org/screenshots/cli/dashboard-3.png)
+
 </details>
 
 <details>
@@ -610,6 +521,8 @@
 $ ./bin/swctl --display graph db g --template my-global-template.yml
 ```
 
+![dashboard-customize](http://skywalking.apache.org/screenshots/cli/dashboard-customize.png)
+
 </details>
 
 <details>