Add Twitch button to ECD Tools social banner
Created by: jph152
We'd like to add a button that links to the Cloud Chat Twitch page to the "Stay Connected" banner on https://ecdtools.eclipse.org
![Screen Shot 2021-06-03 at 9 22 09 AM](https://user-images.githubusercontent.com/69642121/120651824-2eb3e700-c44d-11eb-9e62-fe7f2804ee84.png)
Link: https://www.twitch.tv/cloudchat_?hss_channel=tw-1177549444935487488
Twitch logo: https://fontawesome.com/v4.7/icon/twitch