Added link to the forum to README.md

Author: SableRaf

README.md

@@ -70,3 +70,8 @@ The `processing4` repo now has an updated `java/keywords.txt` file.
 If you need to manually build the site, you can do it by running `npm run build` from the project source. This command is that runs behind the scenes when deploying a release.
 
 It will build from the source and produce the static website in a folder `public`. Once built, the site can run in any static file server.
+
+## Join the Processing community
+We proudly host an active and vibrant community on our [Processing Discourse Forum](https://discourse.processing.org/). Here you can find engaging discussions, ask questions, share your projects, and interact with like-minded Processing enthusiasts of all experience levels.
+
+[![Discourse Users](https://img.shields.io/discourse/users?server=https%3A%2F%2Fdiscourse.processing.org)](https://discourse.processing.org/)