new "Update Channels" post and docs updates around release process
A bunch of text changes bunched together to save us all time.
- blog post about https://gitlab.com/fdroid/update-channels
- added the official F-Droid PPA to the docs (
- updated Release Process doc with Weblate steps
- document PNG issues in Reproducible Builds
These all should be available on my staging site: https://eighthave.gitlab.io/fdroid-website/docs/