Update ReadMe.md

Signed-off-by: Mike Lischke <[email protected]>

ReadMe.md

@@ -1,8 +1,4 @@
-[![GitHub Workflow Status (with event)](https://img.shields.io/github/actions/workflow/status/mike-lischke/antlr4ng/nodejs.yml?style=for-the-badge&logo=github)](https://github.com/mike-lischke/antlr4ng/actions/workflows/nodejs.yml)
-[![Weekly Downloads](https://img.shields.io/npm/dw/antlr4ng?style=for-the-badge&color=blue)](https://www.npmjs.com/package/antlr4ng)
-[![npm version](https://img.shields.io/npm/v/antlr4ng?style=for-the-badge&color=yellow)](https://www.npmjs.com/package/antlr4ng)
-
-<img src="https://raw.githubusercontent.com/mike-lischke/mike-lischke/master/images/ANTLRng2.svg" title="ANTLR Next Generation" alt="ANTLRng" width="96" height="96"/><label style="font-size: 70%">Part of the Next Generation ANTLR Project</label>
+# IMPORTANT: this branch has been renamed to "main" and will be removed later this year!
 
 # TypeScript Runtime for ANTLR 4