Included link to Zulip chat

Author: Oldes

README.md

@@ -1,6 +1,7 @@
 [![Rebol CI](https://github.com/Oldes/Rebol3/actions/workflows/main.yml/badge.svg)](https://github.com/Oldes/Rebol3/actions/workflows/main.yml)
 [![Build Rebol](https://github.com/Oldes/Rebol3/actions/workflows/build-all.yml/badge.svg)](https://github.com/Oldes/Rebol3/actions/workflows/build-all.yml)
 [![Gitter](https://badges.gitter.im/rebol3/community.svg)](https://app.gitter.im/#/room/#Rebol3:gitter.im)
+[![Zulip](https://img.shields.io/badge/zulip-join_chat-brightgreen.svg)](https://rebol.zulipchat.com/)
 [![Chocolatey](https://raw.githubusercontent.com/Oldes/media/master/install-from-choco.svg)](https://chocolatey.org/packages/rebol3)
 [![Replit](https://raw.githubusercontent.com/Oldes/media/master/try-on-replit.svg)](https://replit.com/@Oldes/Rebol-3102)