readme: Remove a "this beta app" reference

chrisbobbe · chrisbobbe · commit 2cf7dd699f2c · 2025-07-21T21:08:12.000-07:00
diff --git a/README.md b/README.md
@@ -109,7 +109,7 @@ Two specific points to expand on:
 [commit-style]: https://zulip.readthedocs.io/en/latest/contributing/commit-discipline.html
 
 
-## Getting started in developing this beta app
+## Getting started in developing
 
 ### Setting up
 
