Update community page (uncategorized -> general)

Author: ryyppy

pages/community.mdx

@@ -24,7 +24,7 @@ News are broadcasted on this site's blog and on Twitter. Some extra, less import
 ## Questions
 
 Your questions can go on:
-- [The Uncategorized category](https://forum.rescript-lang.org/c/uncategorized/) of the forum.
+- [The General category](https://forum.rescript-lang.org/c/general/) of the forum.
 - Various Github repositories in our [Github org](https://github.com/rescript-lang/).
 - [Stack Overflow's `rescript` tag](https://stackoverflow.com/questions/tagged/rescript) (not frequently monitored).