update readme

Author: drudzikatlassian

README.md

@@ -2,6 +2,7 @@
 Wrapped go-jira CLI action. Check out [go-jira documentation](https://github.com/Netflix-Skunkworks/go-jira) for more arguments and usage details
 
 For examples on how to use this, check out the [gajira-demo](https://github.com/atlassian/gajira-demo) repository
+> ##### Only supports Jira Cloud. Does not support Jira Server (hosted)
 
 ## Usage