fix typo and revise document structure

docs/cn/writing-running-appium/android_coverage_cn.md

@@ -5,7 +5,7 @@
 * 由于Instrumentation的数据存在于内存中，因此你还需要实现一个BroadCastReceiver，用于在Instrumentation结束时将Instrument结果输出到手机存储器的文件中。
 
 ## 项目结构
-* 你的项目需要看起来类似如下的结构
+你的项目需要看起来类似如下的结构
 ```
 src/main/java/com/example/pkg
    |____ MainActivity.java 你的主Activity
@@ -15,14 +15,14 @@ src/main/java/com/example/pkg
    |____ EndEmmaBroadCast.java 用于接受结束信号广播的接收器，它将调用InstrumentActivityListener并导出覆盖率。
 ```
 
-* 你在配置Caps时要做如下设置  
+你在配置Caps时要做如下设置  
  `automationName` ： `uiautomator2` (无视大小写)  
  `androidCoverage` ： {package}/{instrumentation class}, 在我们的例子中是com.example.pkg/com.example.pkg.JacocoInstrumentation  
  `appWaitActivity` ： 用作Insutrment的Activity的全名，在我们的例子中是com.example.pkg.InstrumentActivity
  `appWaitPackage` ： {package}，在我们的例子中是com.example.pkg  
  `androidCoverageEndIntent` ： 用作将当前coverage输出至文件中的BroadCasterReceiver的Action名，在我们的例子中是 `com.example.pkg.END_EMMA`  
 
-* 工作原理  
+工作原理  
  Appium 会用类似的命令启动应用：`adb shell am instrument -e coverage true -w com.example.pkg/com.example.pkg.JacocoInstrumentation`  
  在测试完成后，会用`adb shell am broadcast -a com.example.pkg.END_EMMA` 使覆盖率可以被收集（前提是你亲自实现它）
 

docs/en/writing-running-appium/android_coverage.md

@@ -1,27 +1,27 @@
 # Android Coverage Guide
 ## Requirement
 * Only Emulators or rooted phones are acceptable
-* Need add UiAutomator2 supprt in your apps. That is to say, you need implement a subclass of `Instrumentation`. `Instrumentation` will be responsible to collect your coverage. 
+* Need to add UiAutomator2 support in your apps. That is to say, you need to implement a subclass of `Instrumentation`. `Instrumentation` will be responsible to collect your coverage. 
 * Need to implement a BroadcastReceiver to export coverage to disk files. This is because `Instrumentation` only collects data into memory.
 
 ## Project Structure
-* You may need the following structure of files:
+You may need the following structure of files:
 ```
 src/main/java/com/example/pkg
    |____ MainActivity.java *Your main activity*
    |____ InstrumentActivityListener.java *A customized interface for exporting coverage to files*
    |____ InstrumentActivity.java *Activity launched for coverage. But in most cases, this should be same as MainActivity. The only difference is that it will include a `InstrumentActivityListener` to export coverage data to disk files.
-   |____ JacocoInstrumentation.java  The instrument class created by you. Also it needs implemeting InstrumentActivitylistener.
+   |____ JacocoInstrumentation.java  The instrument class created by you. Also it needs to implement `InstrumentActivitylistener`.
    |____ EndEmmaBroadCast.java A broadcast receiver which will be invoked by appium-uiautomator2-driver at the end of testing. You need implementing logic to invoke InstrumentActivityListener so as to export coverage to files.
 ```
-* Configure followings in your caps  
+Configure followings in your caps:  
  `automationName` ： `uiautomator2` (case irrelevant)  
  `androidCoverage` ： {package}/{instrumentation class}, in our example, `com.example.pkg/com.example.pkg.JacocoInstrumentation`  
  `appWaitActivity` ： the FQCN of the activity of InstrumentActivity, in our example, `com.example.pkg.InstrumentActivity`  
  `appWaitPackage` ： {package}，in our example, `com.example.pkg`  
  `androidCoverageEndIntent` ： The action of the broadcast receiver to invoke the exporting of coverage data to files, in our example `com.example.pkg.END_EMMA`  
 
-* Methodology  
+Methodology  
  Appium (appium-uiautomator2-driver) will launch app via command like：`adb shell am instrument -e coverage true -w com.example.pkg/com.example.pkg.JacocoInstrumentation`  
  After testing is done, Appium (appium-uiautomator2-driver) will execute `adb shell am broadcast -a com.example.pkg.END_EMMA` to export coverage to files（If you implement such export in the broadcast receiver）