Consolidate and update workstation release management process

[sssoleileraaa]

Status

Ready for review

Closes #27

Description of Changes

The workstation release management docs were difficult to read and scattered, so I did some work on consolidating the release instructions nested in the securedrop-builder README with the release managment instructions here. I also spent quite a bit of time on simplifying and clarifying the required steps for a release.

Related but separate issue: #36

Checklist (Optional)

• Doc linting (make docs-lint) passed locally
• Doc link linting (make docs-linkcheck) passed
• You have previewed (make docs) docs at http://localhost:8000

[gonzalo-bulnes]

I couldn't stop myself from reading through. I know this is a draft, but I thought it was worth taking note of what I noticed as I read, I hope that's not annoying 😬

Obviously feel free to ignore my comments! (I think that dismissing the review would hide them all at once... not sure, but I'd expect that.)

These updates read great too! Thanks you so much for re-organizing these docs @creviera 🙌

[sssoleileraaa]

[Blocked on https://github.com/https://github.com/freedomofpress/infrastructure/pull/4068 + tandem PR for securedrop repos + actually renaming the repos]

[sssoleileraaa]

Need to fix some linter errors later today and then I'll mark this ready for review. Once this is merged, freedomofpress/securedrop-builder#400 can be merged.

[sssoleileraaa]

@gonzalo-bulnes, this should be ready for another review. I threw it on the SecureDrop "Ready for Review" column

[gonzalo-bulnes]

Only a few typos, the write up itself reads great! ⭐

[sssoleileraaa]

This should be ready for another review.

[gonzalo-bulnes]