Update Groups

[DarthDarri]

include(Chatt) https://www.meetup.com/includechattanooga/
C5 Hack Nights
Programming Interview Practice https://www.meetup.com/Programming-Interview-Practice/
ChaJS https://www.meetup.com/ChattanoogaJS/

[vendion]

We will want to have a link to each groups CoC, Github/GitLab (if any), and a Gravatar ID.