Adding notice about moving to monorepo

Antonio-Laguna · web-flow · commit e5e30643183c · 2022-06-06T07:46:27.000+02:00
diff --git a/README.md b/README.md
@@ -1,3 +1,6 @@
+<div align="center">⚠️ PostCSS Custom Selectors was moved to <a href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-custom-selectors">@csstools/postcss-plugins</a>. ⚠️ <br>
+<a href="https://github.com/csstools/postcss-plugins/discussions/75">Read the announcement</a></div>
+
 # PostCSS Custom Selectors [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS" width="90" height="90" align="right">][postcss]
 
 [![NPM Version][npm-img]][npm-url]
