Discord and Slack Logos (#2604)

* Delete slack.jpg

* Discord and Slack logos

* Add chat links and logos

* Remove large discord logo

* Remove large slack logo

* Upload properly sized chat logos

* Mention chat sync

README.md

@@ -3,8 +3,11 @@ chromebrew
 
 Package manager for Chrome OS
 
-<a href="https://join.slack.com/t/chromebrew/shared_invite/enQtNDA2MTQ5ODQ3NDc2LTA0ZmJlMGFmNmZhOTYwNDE3ZDY0NDA0MWI0OTE3MzJkYTQxN2UxMWQ1YTEzOWFmNTliMGM4NDZjYzY2NjczZGE" target="_blank"><img src="/images/slack.jpg" alt="Slack Invite" /></a>
-[Join the chat on Slack](https://join.slack.com/t/chromebrew/shared_invite/enQtNDA2MTQ5ODQ3NDc2LTA0ZmJlMGFmNmZhOTYwNDE3ZDY0NDA0MWI0OTE3MzJkYTQxN2UxMWQ1YTEzOWFmNTliMGM4NDZjYzY2NjczZGE)
+Chat with us!
+-------------
+Messages are synced between services for your convenience. 😊
+
+<a href="https://join.slack.com/t/chromebrew/shared_invite/enQtNDA2MTQ5ODQ3NDc2LTA0ZmJlMGFmNmZhOTYwNDE3ZDY0NDA0MWI0OTE3MzJkYTQxN2UxMWQ1YTEzOWFmNTliMGM4NDZjYzY2NjczZGE" target="_blank"><img src="/images/slack.png" alt="Slack Invite" /></a><a href="https://discord.gg/QRrzBXN" target="_blank"><img src="/images/discord.png" alt="Discord Invite" /></a>
 
 Supported Systems
 -----------------