Add Expo SDK 50 links to RN docs (#8873)

Co-authored-by: Shana Matthews <[email protected]>

Author: krystofwoldrich

src/platform-includes/getting-started-primer/react-native.mdx

@@ -27,7 +27,7 @@ Features:
 - On Device symbolication for JavaScript (in Debug)
 - [RAM bundle support](/platforms/react-native/manual-setup/ram-bundles/)
 - [Hermes support](/platforms/react-native/manual-setup/hermes/)
-- [Expo package](https://docs.expo.io/guides/using-sentry/) maintained by the Expo team
+- [Expo support](/platforms/react-native/manual-setup/expo/) out of the box
 - [Attachments](/platforms/react-native/enriching-events/attachments/) enrich your event by storing additional files, such as config or log files.
 - [User Feedback](/platforms/react-native/user-feedback/) provides the ability to collect user information when an event occurs.
 - [View Hierarchy](/platforms/react-native/enriching-events/viewhierarchy/) shows the structure of native components at the time an error occurred.

src/platforms/react-native/manual-setup/expo.mdx

@@ -13,7 +13,13 @@ Experimental support means it may have bugs. We recognize the irony.
 
 To set up the Sentry React Native SDK in your Expo project, follow the steps on this page.
 
-### Install the Sentry SDK
+## Prerequisities
+
+- [Expo SDK 50](https://docs.expo.dev/workflow/upgrading-expo-sdk-walkthrough/) or newer.
+  - [Expo SDK 49](https://docs.expo.dev/guides/using-sentry/) and older are supported by the `sentry-expo` package.
+- [Sign up for an account](https://sentry.io/signup/).
+
+## Install the Sentry SDK
 
 Install the `@sentry/react-native` package: