docs: notify caution of capture method

docs/pages/component/methods.mdx

@@ -74,6 +74,8 @@ Save current frame as a PNG file. Returns promise.
 
 Notes:
 
+- this method can not be used with encrypted video contents (with DRM)
+- On Android API level 23 and below capture couldn't support Android `SurfaceView`. if you use SurfaceView, method will be throw an error (`useSurfaceView`, `useSecureView` and `drm` props are internally use SurfaceView).
 - For Android API level 29+ you will need to request the [WRITE_EXTERNAL_STORAGE permission](https://developer.android.com/reference/android/Manifest.permission#WRITE_EXTERNAL_STORAGE) manually using either the built-in react-native `PermissionsAndroid` APIs or a related module such as `react-native-permissions`
 - Also you have to define below code within your `AndroidManifest.xml` file