Update README to add official forum [skip-ci]

Author: DogmaDragon

README.md

@@ -4,6 +4,10 @@ This repository contains plugins, themes, userscripts and other utility scripts
 
 More extensive list of plugins and other projects for Stash is available [on our documentation site](https://docs.stashapp.cc/plugins).
 
+## Join Our Community
+
+We are excited to announce that we have a new home for support, feature requests, and discussions related to Stash and its associated projects. Join our community on the [Discourse forum](https://discourse.stashapp.cc) to connect with other users, share your ideas, and get help from fellow enthusiasts.
+
 ## Plugins
 
 > [!NOTE]