Dj rn beta entry (#2179)

* Adding RN entry point

* One more quick change

Author: djmixpanel

pages/docs/session-replay.mdx

@@ -18,14 +18,15 @@ Session Replay is available for customers on Free, Growth, and Enterprise plans.
 
 ## Implementation
 
-Session Replay is supported on three primary platforms: Web, iOS, and Android. You can use Session Replay with CDPs (e.g., Segment and mParticle) on both Web and Mobile. We also support Electron desktop apps.
+Session Replay is supported on four primary platforms: Web, iOS, Android, and React Native (Beta). You can use Session Replay with CDPs (e.g., Segment and mParticle) on both Web and Mobile. We also support Electron desktop apps.
 
 See our developer guides on implementing Session Replay for these platforms below:
 
 <Cards>
   <Cards.Card icon title="Web" href="/docs/tracking-methods/sdks/javascript/javascript-replay" />
   <Cards.Card icon title="iOS" href="/docs/tracking-methods/sdks/swift/swift-replay" />
   <Cards.Card icon title="Android" href="/docs/tracking-methods/sdks/android/android-replay" />
+  <Cards.Card icon title="React Native (Beta)" href="/docs/tracking-methods/sdks/react-native/react-native-replay" />
 </Cards>
 
 ## Watching Replays