Update sdk-react-native.mdx

Author: Atul-Butola

fern/docs/pages/plug-sdk/sdk-react-native.mdx

@@ -81,7 +81,13 @@ To show the support chat screen in your app, you can use the following method:
 DevRev.showSupport()
 ```
 
+### Creating a new support conversation
 
+You can initiate a new support conversation directly from your app. This method displays the support chat screen and simultaneously creates a new conversation.
+
+```typescript
+DevRev.createSupportConversation()
+```