file isExecutable
Add new chat options to the Community page

Add the XMPP MUC and the new LiberaChat IRC channel to the community page. Also fix a spacing thing that makes Sublime Text highlight in red.

Testing Done:
Ran development server and verified page appeared as expected.

Reviewed at
#!/bin/sh -e
hugo server -s hugo -D --disableFastRender -v --verboseLog --noHTTPCache --i18n-warnings