docs(extensions): mention community extensions and discussion thread (#…

…2991)

docs/api/extensions.md

@@ -31,6 +31,8 @@ There are also some extensions with more capabilities. We call them [nodes](/api
 
 You don’t have to use it, but we prepared a `@tiptap/starter-kit` which includes the most common extensions. Read more about [`StarterKit`](/guide/configuration#default-extensions).
 
+Also a list of community extensions can be found in the [Awesome Tiptap Repository](https://github.com/ueberdosis/awesome-tiptap#community-extensions). There is also a [Discussion Thread](https://github.com/ueberdosis/tiptap/discussions/2973) about community extensions.
+
 ## How extensions work
 Although Tiptap tries to hide most of the complexity of ProseMirror, it’s built on top of its APIs and we recommend you to read through the [ProseMirror Guide](https://ProseMirror.net/docs/guide/) for advanced usage. You’ll have a better understanding of how everything works under the hood and get more familiar with many terms and jargon used by Tiptap.
 
@@ -62,4 +64,3 @@ const editor = new Editor({
 ```
 
 Learn [more about custom extensions in our guide](/guide/custom-extensions).
-