message: doc: Update release process for snap package
diff: @@ -291,24 +291,48 @@ bitcoin.org (see below for bitcoin.org update instructions).
  - After the pull request is merged, the website will automatically show the newest version within 15 minutes, as well
  as update the OS download links. Ping @saivann/@harding (saivann/harding on Freenode) in case anything goes wrong
  -- Announce the release:
  -
  - - bitcoin-dev and bitcoin-core-dev mailing list
  -
  - - Bitcoin Core announcements list https://bitcoincore.org/en/list/announcements/join/
  +- Update other repositories and websites for new version
  - bitcoincore.org blog post
  - bitcoincore.org RPC documentation update
  - - Update title of #bitcoin on Freenode IRC
  -
  - - Optionally twitter, reddit /r/Bitcoin, ... but this will usually sort out itself
  + - Update packaging repo
  - Notify BlueMatt so that he can start building [the PPAs](https://launchpad.net/~bitcoin/+archive/ubuntu/bitcoin)
  + - Create a new branch for the major release "0.xx" (used to build the snap package)
  +
  + - Notify MarcoFalke so that he can start building the snap package
  +
  + - https://code.launchpad.net/~bitcoin-core/bitcoin-core-snap/+git/packaging (Click "Import Now" to fetch the branch)
  + - https://code.launchpad.net/~bitcoin-core/bitcoin-core-snap/+git/packaging/+ref/0.xx (Click "Create snap package")
  + - Name it "bitcoin-core-snap-0.xx"
  + - Leave owner and series as-is
  + - Select architectures that are compiled via gitian
  + - Leave "automatically build when branch changes" unticked
  + - Tick "automatically upload to store"
  + - Put "bitcoin-core" in the registered store package name field
  + - Tick the "edge" box
  + - Put "0.xx" in the track field
  + - Click "create snap package"
  + - Click "Request builds" for every new release on this branch (after updating the snapcraft.yml in the branch to reflect the latest gitian results)
  + - Promote release on https://snapcraft.io/bitcoin-core/releases if it passes sanity checks
  +
  + - This repo
  +
  - Archive release notes for the new version to `doc/release-notes/` (branch `master` and branch of the release)
  - Create a [new GitHub release](https://github.com/bitcoin/bitcoin/releases/new) with a link to the archived release notes.
  +- Announce the release:
  +
  + - bitcoin-dev and bitcoin-core-dev mailing list
  +
  + - Bitcoin Core announcements list https://bitcoincore.org/en/list/announcements/join/
  +
  + - Update title of #bitcoin on Freenode IRC
  +
  + - Optionally twitter, reddit /r/Bitcoin, ... but this will usually sort out itself
  +
  - Celebrate
  