Merge pull request #279 from jamescdavis/s_Slack_Discord

s/Slack/Discord/

Author: chriskrycho

README.md

@@ -45,7 +45,7 @@ When seeking help, you should first consider what you need, and which aspect of
 
 ### 💬 Getting Started
 
-We have an Ember Community Slack channel [#-topic-typescript](https://embercommunity.slack.com/messages/C2F8Q3SK1) where you can ask about getting started, good resources for self-directed learning and more. 
+We have a channel (#e-typescript) on the [Ember Community Discord server](https://discordapp.com/invite/zT3asNS) where you can ask about getting started, good resources for self-directed learning and more.
 
 ### 📚 Issues With Ember Type Definitions