Add masking example images

Author: romtsn

docs/platforms/android/session-replay/privacy/index.mdx

@@ -22,6 +22,8 @@ options.experimental.sessionReplay.maskAllText = false
 options.experimental.sessionReplay.maskAllImages = false
 ```
 
+![Session Replay unredacted](./img/session-replay.jpg) ![Session Replay redacted](./img/session-replay-redacted.jpg)
+
 _Make sure your Sentry Android SDK version is at least 7.15.0._
 
 ## Mask by View Class