234115b09f
Unused because I've edited the wiki page that previously used these files [1] so that it uses images hosted on user-images.githubusercontent.com instead; see discussion in #1490. Also, this will hopefully make it clearer to people that it's not necessary to make a PR in order to change the images on a wiki page. That, in turn, will hopefully make it easier for people to keep the wiki pages up-to-date. [1] https://github.com/42wim/matterbridge/wiki/Slack-bot-setup
