Replay product docs placeholder (#5912)

Simple (placeholder) product page so we can get links pointing to the page

Co-authored-by: Isabel <[email protected]>

Author: ryan953

src/docs/product/session-replay/index.mdx

@@ -0,0 +1,27 @@
+---
+title: "Session Replay"
+sidebar_order: 3
+description: "Session Replay"
+---
+
+<Note>
+
+Session Replay is currently in beta. Beta features are still in-progress and may have bugs. We recognize the irony. If you have any questions or feedback, please email us at [[email protected]](mailto:[email protected]).
+
+**Currently, this feature is supported for only browser JavaScript, including these frameworks:**
+- Angular
+- Ember
+- Gatsby
+- Next.js
+- React
+- Remix
+- Svelte
+- Vue
+
+</Note>
+
+Get to the root cause of an error or latency issue faster by seeing all the technical details related to that issue in one visual replay on your web application.
+
+## Join the Session Replay Waitlist
+
+[See a sneak peek of Session Replay and join the waitlist](https://sentry.io/for/session-replay/)