Fix the problem of page layout
diff --git a/_syncer/cn/multi-servicecenters.md b/_syncer/cn/multi-servicecenters.md
index 6be721a..47e7830 100644
--- a/_syncer/cn/multi-servicecenters.md
+++ b/_syncer/cn/multi-servicecenters.md
@@ -77,8 +77,8 @@
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/eureka/eureka-server/
 $ nohup mvn spring-boot:run & >> eureka-server.log 2>&1 &
 ``` 
-浏览器打开http://10.0.0.10:8761,若出现如下页面,则启动成功  
-![image](/assets/images/docs/syncer/eureka-server-success.jpg)
+   浏览器打开http://10.0.0.10:8761,若出现如下页面,则启动成功  
+   ![image](/assets/images/docs/syncer/eureka-server-success.jpg)
 
 #### 3. 启动AccountServer
 - 修改启动配置  
@@ -100,48 +100,48 @@
     web:
       exposure:
         include: "*"
-```
-- 启动服务
+```  
+
+- 启动服务  
 ```bash
 #启动 AccountServer
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/eureka/account-server
 $ mvn spring-boot:run
-
 # 出现如下字样则为成功
 2019-09-19 17:20:35.534  INFO 20890 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8090 (http) with context path ''
 2019-09-19 17:20:35.548  INFO 20890 --- [           main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8090
 2019-09-19 17:20:35.551  INFO 20890 --- [           main] o.a.s.s.account.AccountApplication       : Started AccountApplication in 3.92 seconds (JVM running for 6.754)
 2019-09-19 17:20:35.617  INFO 20890 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_ACCOUNT-SERVER/10.0.0.10:account-server:8090 - registration status: 204
 ``` 
-此时打开http://10.0.0.10:8761,可以看到AccountServer已经注册成功  
-![image](/assets/images/docs/syncer/eureka-account-server-success.jpg)
+
+   此时打开http://10.0.0.10:8761,可以看到AccountServer已经注册成功  
+   ![image](/assets/images/docs/syncer/eureka-account-server-success.jpg)
 
 #### 4. 启动Syncer
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/
 $ ./syncer daemon --sc-addr http://10.0.0.10:8761/eureka --bind-addr 10.0.0.10:30190 --rpc-addr 10.0.0.10:30191 --sc-plugin=eureka  --node eureka
-
-# 出现如下字样则为成功
-2019-09-19T17:28:28.809+0800	INFO	etcd/agent.go:55	start etcd success
-2019-09-19T17:28:28.809+0800	INFO	grpc/server.go:94	start grpc success
-2019-09-19T17:28:28.809+0800	DEBUG	server/handler.go:39	is leader: true
-2019-09-19T17:28:28.809+0800	DEBUG	server/handler.go:43	Handle Tick
+#出现如下字样则为成功
+2019-09-19T17:28:28.809+0800  INFO  etcd/agent.go:55  start etcd success
+2019-09-19T17:28:28.809+0800  INFO  grpc/server.go:94 start grpc success
+2019-09-19T17:28:28.809+0800  DEBUG server/handler.go:39  is leader: true
+2019-09-19T17:28:28.809+0800  DEBUG server/handler.go:43  Handle Tick
 ```
 
-### 步骤2:启动Servicecenter环境和服务
-机器: 10.0.0.11  
-#### 1. 编译项目
+### 步骤2:启动Servicecenter环境和服务  
+机器: 10.0.0.11   
+#### 1. 编译项目  
 ```bash
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/
 $ GO111MODULE=on go build
-```  
-#### 2. 启动Servicecenter
+```   
+
+#### 2. 启动Servicecenter  
 - 修改启动配置:  
    文件位置:${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/conf/app.conf  
-```conf
+```bash
 frontend_host_ip = 10.0.0.11
 frontend_host_port = 30103
-
 ###################################################################
 # sever options
 ###################################################################
@@ -156,19 +156,17 @@
 - 启动 ServiceCenter 和 Frontend
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64
-
 # 启动 ServiceCenter
 $ ./start-service-center.sh
-
 # 启动 前端页面 Frontend
 $ ./start-frontend.sh
 ```
-浏览器打开http://10.0.0.11:30103,若出现如下页面,则启动成功  
-![image](/assets/images/docs/syncer/service-center-server-success.jpg)
+   浏览器打开http://10.0.0.11:30103,若出现如下页面,则启动成功  
+   ![image](/assets/images/docs/syncer/service-center-server-success.jpg)  
 
 #### 3. 启动HelloServer
 - 修改启动配置:  
-   文件位置:${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/conf/microservice.yaml
+   文件位置:${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/conf/microservice.yaml  
 ```yml
 service: # 微服务配置
   appId: eureka # eureka 中同步的实例appID均为:eureka
@@ -183,27 +181,28 @@
   version: 0.0.1
 registry:
   address: http://10.0.0.11:30100
-```
+```  
 
-- 启动服务
+- 启动服务  
 ```bash
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server
 $ ./hello-server
 2019-09-19T18:37:50.645+0800	DEBUG	servicecenter/servicecenter.go:163	send heartbeat success
 2019-09-19T18:37:50.645+0800	WARN	servicecenter/servicecenter.go:85	discovery provider failed, appID = eureka, name = account-server, version = 0.0.1
 2019-09-19T18:37:50.645+0800	INFO	servicecenter/servicecenter.go:87	waiting for retry
-```
-此时打开http://10.0.0.11:30103,可以看到HelloServer已经注册成功  
-![image](/assets/images/docs/syncer/service-center-hello-server-success.jpg)  
-但由于无法发现属于Eureka服务中心的AccountServer实例,HelloServer处于重试状态  
-(==注:重试次数为3次,每次间隔30秒,所以我们需要在90秒内完成后面的操作==)
+```  
 
-#### 4.启动Syncer
+   此时打开http://10.0.0.11:30103,可以看到HelloServer已经注册成功  
+   ![image](/assets/images/docs/syncer/service-center-hello-server-success.jpg)  
+   但由于无法发现属于Eureka服务中心的AccountServer实例,HelloServer处于重试状态  
+   (==注:重试次数为3次,每次间隔30秒,所以我们需要在90秒内完成后面的操作==)  
+
+#### 4.启动Syncer  
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/
 $ ./syncer daemon --sc-addr http://10.0.0.11:30100 --bind-addr 10.0.0.11:30190 --rpc-addr 10.0.0.11:30191 --sc-plugin=servicecenter --join-addr 10.0.0.10:30190 --node servicecenter
 
-# 出现以下内容则为Syncer成功启动,并同步了对方的实例
+#出现以下内容则为Syncer成功启动,并同步了对方的实例
 2019-09-19T18:44:35.536+0800	DEBUG	server/handler.go:62	is leader: true
 2019-09-19T18:44:35.536+0800	DEBUG	server/handler.go:79	Receive serf user event
 2019-09-19T18:44:35.536+0800	DEBUG	serf/agent.go:130	member = servicecenter, groupName = 0204d59328090c2f4449a088d4e0f1d8
@@ -213,16 +212,16 @@
 2019-09-19T18:44:35.538+0800	DEBUG	servicecenter/servicecenter.go:87	create service success orgServiceID= account-server, curServiceID = 80784229255ec96d90353e3c041bdf3586fdbbae
 2019-09-19T18:44:35.538+0800	DEBUG	servicecenter/servicecenter.go:90	trying to do registration of instance, instanceID = 10.0.0.10:account-server:8090
 2019-09-19T18:44:35.540+0800	DEBUG	servicecenter/sync.go:63	Registered instance successful, instanceID = 78bca3e2daca11e99638fa163eca30e0
-```
+```  
 
 ### 步骤3:结果验证
 1. 此时的HelloServer获取实例成功,并调用了AccountServer的CheckHealth接口  
-![image](/assets/images/docs/syncer/hello-server-discovery-success) 
+   ![image](/assets/images/docs/syncer/hello-server-discovery-success.jpg)  
 
-2. 分别打开Euraka和ServiceCenter的网页,两个服务中心里均包含了所有的实例信息
-![image](/assets/images/docs/syncer/eureka-server-has-all.jpg) 
-![image](/assets/images/docs/syncer/service-center-server-has-all.jpg) 
-3. curl命令调用HelloServer的Login接口
+2. 分别打开Euraka和ServiceCenter的网页,两个服务中心里均包含了所有的实例信息  
+   ![image](/assets/images/docs/syncer/eureka-server-has-all.jpg)  
+   ![image](/assets/images/docs/syncer/service-center-server-has-all.jpg)  
+3. curl命令调用HelloServer的Login接口  
 ```bash
 $ curl -X POST \
 http://192.168.88.75:8091/login \
@@ -232,9 +231,9 @@
   "password":"123456"
 }'
 welcome Jack
-```
+```  
 HelloServer与AccountServer分别会打印如下的信息  
-AccountServer
-![image](/assets/images/docs/syncer/account-server-reply.jpg)   
+AccountServer  
+   ![image](/assets/images/docs/syncer/account-server-reply.jpg)   
 HelloServer  
-![image](/assets/images/docs/syncer/hello-server-result.jpg)  
+   ![image](/assets/images/docs/syncer/hello-server-result.jpg)  
diff --git a/_syncer/multi-servicecenters.md b/_syncer/multi-servicecenters.md
index 8a519cf..3dcc8c0 100644
--- a/_syncer/multi-servicecenters.md
+++ b/_syncer/multi-servicecenters.md
@@ -75,8 +75,8 @@
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/eureka/eureka-server/
 $ nohup mvn spring-boot:run & >> eureka-server.log 2>&1 &
 ``` 
-Open http://10.0.0.10:8761 in the browser, this is successful if the following page appears.  
-![image](/assets/images/docs/syncer/eureka-server-success.jpg)
+   Open http://10.0.0.10:8761 in the browser, this is successful if the following page appears.  
+   ![image](/assets/images/docs/syncer/eureka-server-success.jpg)
 
 #### 3. Run AccountServer
 - Modify the startup configuration  
@@ -103,66 +103,60 @@
 ```bash
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/eureka/account-server
 $ mvn spring-boot:run
-
-# This is successful if the result like this,
+#This is successful if the result like this,
 2019-09-19 17:20:35.534  INFO 20890 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8090 (http) with context path ''
 2019-09-19 17:20:35.548  INFO 20890 --- [           main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8090
 2019-09-19 17:20:35.551  INFO 20890 --- [           main] o.a.s.s.account.AccountApplication       : Started AccountApplication in 3.92 seconds (JVM running for 6.754)
 2019-09-19 17:20:35.617  INFO 20890 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_ACCOUNT-SERVER/10.0.0.10:account-server:8090 - registration status: 204
 ``` 
-Reopen http://10.0.0.10:8761, you can see that AccountServer has been registered successfully.  
-![image](/assets/images/docs/syncer/eureka-account-server-success.jpg)
+   Reopen http://10.0.0.10:8761, you can see that AccountServer has been registered successfully.  
+   ![image](/assets/images/docs/syncer/eureka-account-server-success.jpg)
 
 #### 4. Run Syncer of eureka
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/
 $ ./syncer daemon --sc-addr http://10.0.0.10:8761/eureka --bind-addr 10.0.0.10:30190 --rpc-addr 10.0.0.10:30191 --sc-plugin=eureka  --node eureka
-
-# This is successful if the result like this,
+#This is successful if the result like this,
 2019-09-19T17:28:28.809+0800	INFO	etcd/agent.go:55	start etcd success
 2019-09-19T17:28:28.809+0800	INFO	grpc/server.go:94	start grpc success
 2019-09-19T17:28:28.809+0800	DEBUG	server/handler.go:39	is leader: true
 2019-09-19T17:28:28.809+0800	DEBUG	server/handler.go:43	Handle Tick
 ```
 
-### Step 2: Start the Servicecenter environment and services
+### Step 2: Start the Servicecenter environment and services  
 Another machine: 10.0.0.11  
-#### 1. Compile HelloServer
+#### 1. Compile HelloServer  
 ```bash
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/
 $ GO111MODULE=on go build
 ```  
-#### 2. Run Servicecenter
+#### 2. Run Servicecenter  
 - Modify the startup configuration:  
    File path:${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/conf/app.conf  
-```conf
+```bash
 frontend_host_ip = 10.0.0.11
 frontend_host_port = 30103
-
-###################################################################
-# sever options
-###################################################################
-# if you want to listen at ipv6 address, then set the httpaddr value like:
-# httpaddr = 2400:A480:AAAA:200::159        (global scope)
-# httpaddr = fe80::f816:3eff:fe17:c38b%eth0 (link-local scope)
+#sever options
+#if you want to listen at ipv6 address, then set the httpaddr value like:
+#httpaddr = 2400:A480:AAAA:200::159        (global scope)
+#httpaddr = fe80::f816:3eff:fe17:c38b%eth0 (link-local scope)
 httpaddr = 10.0.0.11
 httpport = 30100
-# ...以下省略...
-```
+#...以下省略...
+```  
 
-- Run ServiceCenter and Frontend
+- Run ServiceCenter and Frontend  
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64
 $ ./start-service-center.sh
 $ ./start-frontend.sh
-```
-Open http://10.0.0.11:30103 in the browser, this is successful if the following page appears.  
-  
-![image](/assets/images/docs/syncer/service-center-server-success.jpg)
+```  
+   Open http://10.0.0.11:30103 in the browser, this is successful if the following page appears.    
+   ![image](/assets/images/docs/syncer/service-center-server-success.jpg)  
 
-#### 3. Run HelloServer
+#### 3. Run HelloServer  
 - Modify the startup configuration  
-   File path:${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/conf/microservice.yaml
+   File path:${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server/conf/microservice.yaml  
 ```yml
 service: # Micro service configuration
   appId: eureka # The appID is "eureka", if the instance synced from eureka.
@@ -179,26 +173,24 @@
   address: http://10.0.0.11:30100
 ```
 
-- Start HelloServer
+- Start HelloServer  
 ```bash
 $ cd ${project_dir}/servicecomb-service-center/syncer/samples/multi-servicecenters/servicecenter/hello-server
 $ ./hello-server
 2019-09-19T18:37:50.645+0800	DEBUG	servicecenter/servicecenter.go:163	send heartbeat success
 2019-09-19T18:37:50.645+0800	WARN	servicecenter/servicecenter.go:85	discovery provider failed, appID = eureka, name = account-server, version = 0.0.1
 2019-09-19T18:37:50.645+0800	INFO	servicecenter/servicecenter.go:87	waiting for retry
-```
-Reopen http://10.0.0.11:30103, you can see that HelloServer has been registered successfully.  
- 
-![image](/assets/images/docs/syncer/service-center-hello-server-success.jpg)  
-But, the instance of AccountServer belonging to the EurekaServer cannot be found, the HelloServer is in the retry state.  
-(**_Warning_**: We must complete the operation within 3 retry times (90 seconds))
+```  
+   Reopen http://10.0.0.11:30103, you can see that HelloServer has been registered successfully.    
+   ![image](/assets/images/docs/syncer/service-center-hello-server-success.jpg)  
+   But, the instance of AccountServer belonging to the EurekaServer cannot be found, the HelloServer is in the retry state.   
+   (**_Warning_**: We must complete the operation within 3 retry times (90 seconds))  
 
-#### 4.Run Syncer of service-center
+#### 4.Run Syncer of service-center  
 ```bash
 $ cd ${project_dir}/apache-servicecomb-service-center-1.3.0-linux-amd64/
 $ ./syncer daemon --sc-addr http://10.0.0.11:30100 --bind-addr 10.0.0.11:30190 --rpc-addr 10.0.0.11:30191 --sc-plugin=servicecenter --join-addr 10.0.0.10:30190 --node servicecenter
-
-# This is successful if the result like this,
+#This is successful if the result like this,
 2019-09-19T18:44:35.536+0800	DEBUG	server/handler.go:62	is leader: true
 2019-09-19T18:44:35.536+0800	DEBUG	server/handler.go:79	Receive serf user event
 2019-09-19T18:44:35.536+0800	DEBUG	serf/agent.go:130	member = servicecenter, groupName = 0204d59328090c2f4449a088d4e0f1d8
@@ -208,16 +200,16 @@
 2019-09-19T18:44:35.538+0800	DEBUG	servicecenter/servicecenter.go:87	create service success orgServiceID= account-server, curServiceID = 80784229255ec96d90353e3c041bdf3586fdbbae
 2019-09-19T18:44:35.538+0800	DEBUG	servicecenter/servicecenter.go:90	trying to do registration of instance, instanceID = 10.0.0.10:account-server:8090
 2019-09-19T18:44:35.540+0800	DEBUG	servicecenter/sync.go:63	Registered instance successful, instanceID = 78bca3e2daca11e99638fa163eca30e0
-```
+```  
 
-### Step 3: Results Verification
+### Step 3: Results Verification  
 1. At this point, HelloServer gets the instance successfully, and calls the CheckHealth interface of AccountServer.  
-![image](/assets/images/docs/syncer/hello-server-discovery-success) 
+   ![image](/assets/images/docs/syncer/hello-server-discovery-success.jpg)   
 
-2. Open the website of Euraka and ServiceCenter respectively. Both service centers contain all the instance information.
-![image](/assets/images/docs/syncer/eureka-server-has-all.jpg) 
-![image](/assets/images/docs/syncer/service-center-server-has-all.jpg) 
-3. Call the Login interface of HelloServer used the command line of curl,
+2. Open the website of Euraka and ServiceCenter respectively. Both service centers contain all the instance information.  
+   ![image](/assets/images/docs/syncer/eureka-server-has-all.jpg)   
+   ![image](/assets/images/docs/syncer/service-center-server-has-all.jpg)   
+3. Call the Login interface of HelloServer used the command line of curl,  
 ```bash
 $ curl -X POST \
 http://192.168.88.75:8091/login \
@@ -228,8 +220,8 @@
 }'
 welcome Jack
 ```
-HelloServer and AccountServer respectively print the following information.  
-AccountServer
-![image](/assets/images/docs/syncer/account-server-reply.jpg)   
-HelloServer  
-![image](/assets/images/docs/syncer/hello-server-result.jpg)  
+HelloServer and AccountServer respectively print the following information.    
+AccountServer  
+   ![image](/assets/images/docs/syncer/account-server-reply.jpg)   
+HelloServer   
+   ![image](/assets/images/docs/syncer/hello-server-result.jpg)