Add support note in the readme

README.md

@@ -201,6 +201,10 @@ And the generated icon IDs would be:
 
 You can provide a `getIconId` function via the configuration file to customize how the icon IDs / CSS selectors are derived from the filepath. The function will receive relative paths to the icon and the input directory as arguments, and must return a unique string to be used as the ID.
 
+### Support
+
+The library is currently actively maintained for for Node 16.x.x support or above
+
 ### Contribute
 
 PRs are always welcome. If you need help questions, want to bounce ideas or just say hi, [join the Discord channel](https://discord.gg/BXAY3Kc3mp).