Google Play Store post-release TODO

[Deleted user]

Once uploaded on the Play Store

• Update README with play store link, and link to https://opensourcecornell.slack.com/signup (alongside mention of IRC)
• Add a version tag
• [note to self - update old Big Red App info to link them to this (if they have Android, else say no longer supported -- and ask about anyone who wants to work on the iOS version!)]