update description for waitForActivity
MODIFY
docs/en/writing-running-appium/caps.md
docs/en/writing-running-appium/caps.md
|----|-----------|-------|
|`appActivity`| Activity name for the Android activity you want to launch from your package. This often needs to be preceded by a `.` (e.g., `.MainActivity` instead of `MainActivity`)|`MainActivity`, `.Settings`|
|`appPackage`| Java package of the Android app you want to run|`com.example.android.myApp`, `com.android.settings`|
-|`appWaitActivity`| Activity name for the Android activity you want to wait for|`SplashActivity`|
+|`appWaitActivity`| Activity name/names, comma separated, for the Android activity you want to wait for|`SplashActivity`, `SplashActivity,OtherActivity`, `*`, `*.SplashActivity`|
|`appWaitPackage`| Java package of the Android app you want to wait for|`com.example.android.myApp`, `com.android.settings`|
|`appWaitDuration`| Timeout in milliseconds used to wait for the appWaitActivity to launch (default `20000`)| `30000`|
|`deviceReadyTimeout`| Timeout in seconds while waiting for device to become ready|`5`|

update description for waitForActivity