add discord info

Author: invalidusrname

_pages/hack-nights.md

@@ -14,3 +14,5 @@ excerpt: Join us the first Tuesday of every month
 A monthly meetup of fellow Rubyists. Come sit around the virtual campfire as we discuss ruby news, current projects people are working on, and provide help with questions you have. We're a group of friendly folks open to people of all background and experience levels. Whether you're a first timer or an experienced developer, come join us!
 
 We meet the first Tuesday of every month. You can [RSVP here](https://www.meetup.com/charlotte-rb/events)
+
+We also have a discord available [here](https://discord.gg/DnafVbEh) to hangout, ask for help, or post memes.