Temporarily removing gitter link
Temporarily removing gitter link

After transferring the repo to `thunder-project`, we need to recreate the gitter chatroom.
j-friedrich/thunder,poolio/thunder,zhwa/thunder,broxtronix/thunder,j-friedrich/thunder,kunallillaney/thunder,jwittenbach/thunder,mikarubi/thunder,pearsonlab/thunder,poolio/thunder,zhwa/thunder,kcompher/thunder,oliverhuangchao/thunder,kunallillaney/thunder,thunder-project/thunder,kcompher/thunder,oliverhuangchao/thunder,broxtronix/thunder,mikarubi/thunder,pearsonlab/thunder