Add cross-link to tools suite

Author: kasapdev

README.md

@@ -72,3 +72,9 @@ Then simply open `index.html` in any modern browser (double-click it, or `file:/
 ## License
 
 MIT Licensed. Part of the [Web Utility Suite](../index.html).
+
+---
+
+## Part of the kasapdev Tools Suite
+
+One of 45+ zero-dependency vanilla JS tools, all free and open source — [see the full list](https://github.com/kasapdev/kasapdev).