Merge branch 'master' of github.com:mattermost/mattermost-plugin-welcomebot into MM-108

Author: Kshitij-Katiyar

README.md

@@ -1,3 +1,7 @@
+# Disclaimer
+
+**This repository is community supported and not maintained by Mattermost. Mattermost disclaims liability for integrations, including Third Party Integrations and Mattermost Integrations. Integrations may be modified or discontinued at any time.**
+
 # Welcome Bot Plugin
 
 [![Build Status](https://img.shields.io/circleci/project/github/mattermost/mattermost-plugin-welcomebot/master)](https://circleci.com/gh/mattermost/mattermost-plugin-welcomebot)