add apm game doc

Documentation/api/apiIndexApm.md

 ---|---|---
 Sets whether to enable APM to collect performance monitoring data. If this parameter is set to false, APM stops collecting app performance data. The default value is true.<br>``启用APM监控、停用APM监控``|enableCollection(boolean enable)|[apms](https://developer.huawei.com/consumer/en/doc/development/AppGallery-connect-References/apms)
 
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-
-
+#### Scenario: Scene frame rendering and loading performance monitoring``APM Game Plugin服务入口``
+| Description | Api | Reference |
+---|---|---
+Start APM Game Plugin service.<br>``开始APM Game Plugin服务``|start()|
+Stop APM Game Plugin service.<br>``停止APM Game Plugin服务``|stop()|
+Start recording scene loading time.<br>``开始记录场景加载时间``|startLoadingScene(GameAttribute gameAttribute)|
+Stop recording scene loading time.<br>``停止记录场景加载时间``|stopLoadingScene(string scene)|
+Save current game properties.<br>``保存当前游戏属性``|setCurrentGameAttribute(GameAttribute gameAttribute)|
+Set the reporting frequency of game performance data, unit: minute.<br>``设置游戏性能数据上报频率，单位：分钟``|setReportRate(int intervalMin)|
+Whether to enable APM Game Plugin service.<br>``是否启用APM Game Plugin服务``|enableGamePlugin(boolean enabled)|

Documentation/apm.md

 
 Before integrating the APM SDK, ensure that your app has integrated the AppGallery Connect SDK and AppGallery Connect plug-in. For details, please refer to [Getting Started with Android.](https://developer.huawei.com/consumer/en/doc/development/AppGallery-connect-Guides/agc-get-started)
 
-**Note**: 
+**Note**:
 
 1. Copy the  `agconnect-services.json` file to `Assets/Plugins/Android/`
 
 
    ```
    dependencies {      
-    implementation 'com.huawei.agconnect:agconnect-core:1.4.2.301'    
+    implementation 'com.huawei.agconnect:agconnect-core:1.5.2.300'    
    }
 
    ```
                   maven {url 'https://developer.huawei.com/repo/'}  
               }  
           }
-   
+
    buildscript {  
               repositories {  
                   google()  
    }
-   
+
-               classpath 'com.huawei.agconnect:agcp:1.4.2.301'
+               classpath 'com.huawei.agconnect:agcp:1.5.2.300'
               }  
    }
    ```
 dependencies {
 // ...
 // Add APM SDK library dependency
-implementation 'com.huawei.agconnect:agconnect-apms:1.4.1.303'
+implementation 'com.huawei.agconnect:agconnect-apms:1.5.2.300'
+implementation 'com.huawei.agconnect:agconnect-apms-game:1.5.2.300'
 }
 ```
 
    apply plugin: 'com.huawei.agconnect.apms'
    // Apply the AGC plugin
    apply plugin: 'com.huawei.agconnect'
-   
+
-   
+
 2. Add the APM plug-in to the baseProjectTemplate.gradle file.
 
    ```
         // To benefit from the latest APM feaures, update your Android Gradle Plugin dependency to at least v3.3.2
         classpath 'com.android.tools.build:gradle:3.3.2'
         // Add the dependency for the APM plugin
-        classpath 'com.huawei.agconnect:agconnect-apms-plugin:1.4.1.303'
+        classpath 'com.huawei.agconnect:agconnect-apms-plugin:1.5.2.300'
       }
    }
    ```
    ```
    void Start()
    {
-     
+
-   
+
-     
+
-    
+
-    
+
-    
+
-   
+
-   
+
 6. Bind buttons and interfaces in scripts
 
    ![Images/apm/apm_settingup7.png](Images/apm/apm_settingup7.png)
 
 - Step 1: Create a repo from:  https://github.com/Unity-Technologies/unity-hms_sdk/tree/apm and checkout to “apm” branch.
 
-- Step 2: Replace  `agconnect-services.json` file from your remote project and configure your gradle files, refer to Part 2. Step 1 to Step 3. 
+- Step 2: Replace  `agconnect-services.json` file from your remote project and configure your gradle files, refer to Part 2. Step 1 to Step 3.
 
 - Step 3: Open Unity Hub, add HuaweiServiceDemo Project (Unity version 2019.3).
 
 
    > Microsoft (R) Visual C# Compiler version 2.9.1.65535 (9d34608e)
    > Copyright (C) Microsoft Corporation. All rights reserved.
-   > 
+   >
    > error CS0009: Metadata file      '/Users/yanmeng/Desktop/unity_agc_new/unity-hms_sdk/hmsDemo/Library/ScriptAssemblies/Unity.Timeline.Editor.dll' could not be opened -- Image is too small.
    > Assets/HuaweiHms/src/hms/Wrapper/fundation/HmsClass.cs(72,25): warning CS0693: Type parameter 'T' has the same name as the type parameter from outer type 'HmsClass<T>'
 
 - Step 6: build android apk and run on Android device. Use logcat to check whether test cases are executed successfully.
 
    ![Images/apm/apm_11.png](Images/apm/apm_11.png)
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