Merge pull request #183 from wp-cli/twitter-support

Explain why Twitter isn't an appropriate support medium

Author: danielbachhuber

index.md

@@ -119,6 +119,8 @@ WP-CLI's maintainers and project contributors do their best to respond to all ne
 
 If you can't find your answer in one of those existing resources, feel free to [create an issue](https://github.com/wp-cli/wp-cli/issues/new) with your question.
 
+Please do not ask support questions on Twitter. Twitter isn't an acceptable venue for support because: 1) it's hard to hold conversations in under 140 characters, and 2) Twitter isn't a place where someone with your same question can search for an answer in a prior conversation.
+
 If you have a WordPress.org account, you may also consider joining the `#cli` channel on the [WordPress.org Slack organization](https://make.wordpress.org/chat/).
 
 ## Extending