Merge pull request #263 from merico-dev/replace-screenshot

docs: update screenshots

README.md

diff --git a/README.md b/README.md
index 036968f..4f959df 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 
 Dev Lake is the one-stop solution that _**integrates, analyzes, and visualizes**_ software development data throughout the _**software development life cycle (SDLC)**_ for engineering teams.
 
-<img src="https://user-images.githubusercontent.com/3789273/129271522-4b3b6451-2292-40c7-82d6-86df4ac13cd7.png" width="100%" alt="Dev Lake Grafana Dashboard" />
+<img src="https://user-images.githubusercontent.com/2908155/130271622-827c4ffa-d812-4843-b09d-ea1338b7e6e5.png" width="100%" alt="Dev Lake Grafana Dashboard" />
 
 ### Why choose Dev Lake?
 
@@ -49,8 +49,6 @@
 
 ## Grafana
 
-<img src="https://user-images.githubusercontent.com/3789273/128533901-3107e9bf-c3e3-4320-ba47-879fe2b0ea4d.png" width="450px" />
-
 We use <a href="https://grafana.com/" target="_blank">Grafana</a> as a visualization tool to build charts for the data stored in our database. Using SQL queries we can add panels to build, save, and edit customized dashboards.
 
 All the details on provisioning, and customizing a dashboard can be found in the [Grafana Doc](docs/GRAFANA.md)