README: update gitter.im badge

README.md

@@ -1,6 +1,6 @@
 # Lite mite wrapping basic DOM for Amber Smalltalk
 
-[![Join the chat at https://gitter.im/amber-smalltalk/domite](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/amber-smalltalk/domite?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Join the chat at https://gitter.im/amber-smalltalk/domite](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/amber-smalltalk/amber-contrib-domite?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 Lite mite wrapping basic DOM for Amber Smalltalk