Add a Gitter chat badge to README.md

[gitter-badger]

mozillascience/studyGroup now has a Chat Room on Gitter

@acabunoc has just created a chat room. You can visit it here: https://gitter.im/mozillascience/studyGroup.

This pull-request adds this badge to your README.md:

If my aim is a little off, please let me know.

Happy chatting.

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[abbycabs]

@BillMills I added a hook that will leave a message in this gitter chat if someone forks the repo. Not sure if you want this in the README.

[bkatiemills]

yeah, maybe better to funnel live conversation at IRC? We're also going to get emails (per your other email), yes?

Thanks for this, webhooks are awesome!

[auremoser]

hey @acabunoc, what's the status on this? I'm sorry I let it sit for so long, but if you think it's important I can resolve conflicts and try to merge.

[abbycabs]

Hey @auremoser - no worries. It's the just the badge that links to the gitter chat room. Not sure if you're actively using this room, though? https://gitter.im/mozillascience/studyGroup

Bill wanted notifications when someone forked the repo. I set up the notifications in this gitter channel (and created the channel) & email notiifcations.

[auremoser]

Great, thank you! Would you like it merged into the readme here or did you both mutually decide to leave it out?

[abbycabs]

I think Bill decided to leave it out. It's up to you whether or not you want to use that room! There's a few ppl lurking there, but no real chatter (yet?) :)