修改安卓v5接口文档

v5/android/Android_Integration_Specification_CH.md

@@ -109,7 +109,7 @@ pay_result 为 json 字符串，格式如下：
 
 1.把alipaySdk.arr 拷贝到项目的libs下面
 
-2. 在Application Module的build.gradle文件的dependencies下添加
+2.在Application Module的build.gradle文件的dependencies下添加
 
 ```
 compile(name: 'alipaySdk', ext: 'aar')

v5/android/Android_Integration_Specification_EN.md

@@ -109,7 +109,7 @@ Message description:
 
 1.Copy alipaySdk.arr to the project's libs.
 
-2.Add in the dependencies of the build.gradle file in the Application Module.
+2.Add in the dependencies of the build.gradle file in the Application Module
 
 ```
 compile(name: 'alipaySdk', ext: 'aar')