Update README.md

Update about Embodied AI Community Group

Author: adamdbrw

README.md

@@ -156,7 +156,7 @@ Try RAI yourself with these demos:
 
 ### Embodied AI Community Group
 
-RAI is one of the main projects in focus of the Embodied AI Community Group. Find out more and register at [ROS Discourse](https://discourse.ros.org/t/embodied-ai-community-group-call-of-interest/39990).
+RAI is one of the main projects in focus of the [Embodied AI Community Group](https://github.com/ros-wg-embodied-ai). If you would like to join the next meeting, look for it in the [ROS Community Calendar](https://calendar.google.com/calendar/u/0/embed?src=c_3fc5c4d6ece9d80d49f136c1dcd54d7f44e1acefdbe87228c92ff268e85e2ea0@group.calendar.google.com&ctz=Etc/UTC). 
 
 ### Publicity