update dev-guide for android and ios SDK

Author: Calinteodor

docs/dev-guide/android-sdk.md

@@ -566,6 +566,9 @@ Stops the recording based on `mode` and also can stop `transcription` if it was
 ##### OVERWRITE_CONFIG
 Overwrites `config` during the meeting.
 
+##### SEND_CAMERA_FACING_MODE_MESSAGE
+Sends a message `to` with the `facingMode` via data channel. 
+
 ## ProGuard rules
 
 When using the SDK on a project some proguard rules have to be added to avoid necessary code being stripped. Add the following to your project's

docs/dev-guide/ios-sdk.md

@@ -357,6 +357,19 @@ Called when a meeting unique id was set. `data` contains the following informati
 
 - `sessionId`: the unique conference id.
 
+#### recordingStatusChanged
+
+Called when current recording status is changing. `data` contains the following information:
+
+- `error`
+- `id`
+- `initiator`
+- `liveStreamViewURL`
+- `mode`
+- `status`
+- `terminator`
+- `timestamp`
+
 ### Picture-in-Picture
 
 `JitsiMeetView` will automatically adjust its UI when presented in a