docs: add community section to main readme

Signed-off-by: Andres Correa Casablanca <castarco@coderspirit.xyz>

Author: castarco

README.md

@@ -21,3 +21,17 @@ technologies such as Vue.
 ## Packages in this repository:
 
 - [@beautiful-tree/react](@beautiful-tree/react/README.md)
+
+## Community
+
+- For slow-paced discussions, debates, ideas, etc. that don't fit into specific
+  issues or PRs, we have a
+  [discussions section](https://github.com/Coder-Spirit/beautiful-tree/discussions).
+- For more unstructured and "real time" conversations, we have a
+  [Discord space](https://discord.gg/3a8RSRdEv2).
+
+## Related articles
+
+- [How to create a React components dual library (ESM+CJS)](https://blog.coderspirit.xyz/blog/2023/09/15/create-a-react-component-lib/):
+  It covers some of the technical decisions behind this library to offer CJS &
+  ESM support at the same time.