modify_readme,test=develop

README.md

@@ -6,5 +6,10 @@
 - [ERNIE](./ERNIE): Enhanced Representation from kNowledge IntEgration
 - [ELMo](./ELMo): Embeddings from Language Models
 
+## Communication
+
+- [Github Issues](https://github.com/PaddlePaddle/LARK/issues): bug reports, feature requests, install issues, usage issues, etc.
+- QQ discussion group: 760439550 (ERNIE discussion group).
+- [Forums](http://ai.baidu.com/forum/topic/list/168?pageNo=1): discuss implementations, research, etc.
 
 And more is on the way.