Fix broken link to Luis command docs (#271)

Author: Scott Gellock

README.md

@@ -31,7 +31,7 @@ The following commands are currently available:
 * [Chatdown](https://github.com/microsoft/botframework-cli/tree/master/packages/cli#bf-chatdown) 
 * [QnAMaker](https://github.com/microsoft/botframework-cli/tree/master/packages/cli#bf-qnamaker)
 * [Config](https://github.com/microsoft/botframework-cli/tree/master/packages/cli#bf-config)
-* [Luis](https://github.com/microsoft/botframework-cli/tree/emimunoz/luis/packages/cli#bf-luis)
+* [Luis](https://github.com/microsoft/botframework-cli/tree/master/packages/cli#bf-luis)
 
 #### Future Commands
 The following commands will be ported in upcoming releases: