Update README.md

Author: gkorland

README.md

@@ -59,6 +59,8 @@ Stores a graph provided as a protobuf blob. Backend is TF for now.
 
 ### AI.RUN GRAPH graph_key ninputs input_key input_name_in_graph ... output_key output_name_in_graph ...
 
+## Mailiing List
+[RedisAI Google group](https://groups.google.com/forum/#!forum/redisai)
 
 ## License