message: docs: clarify how to deal with problematic releases
diff: @@ -44,3 +44,27 @@ Upgrading Electron
  - Upgrade the `electron-prebuilt` dependency version in `package.json` to an
  *exact version* (no `~`, `^`, etc).
  +
  +Dealing with a problematic release
  +----------------------------------
  +
  +There can be times where a release is accidentally plagued with bugs. If you
  +released a new version and notice the error rates are higher than normal, then
  +revert the problematic release as soon as possible, until the bugs are fixed.
  +
  +You can revert a version by deleting its builds from the S3 bucket and Bintray.
  +Refer to the `Makefile` for the up to date information about the S3 bucket
  +where we push builds to, and get in touch with the resin.io operations team to
  +get write access to it.
  +
  +The Etcher update notifier dialog and the website only show the a certain
  +version if all the expected files have been uploaded to it, so deleting a
  +single package or two is enough to bring down the whole version.
  +
  +Use the following command to delete files from S3:
  +
  +```sh
  +aws s3api delete-object --bucket <bucket name> --key <file name>
  +```
  +
  +The Bintray dashboard provides an easy way to delete a version's files.
  