Mostly consistency in capitalization, adding some links to related
issues, spell-checking and splitting long sentences.

See: team#41948

They don't seem to like GitLab links to wiki pages. :-(

See: https://gitlab.torproject.org/tpo/tpa/wiki-replica/-/jobs/820082

Prevent this error:

    (stdin): Kramdown Warning: No link definition for link ID 'toc' found on line 7

See: https://gitlab.torproject.org/tpo/tpa/wiki-replica/-/jobs/820071

refs team#41948

refs team#41948

refs team#41948

refs tpo/tpa/tails/sysadmin#18166

At least one user was confused and put submission.torproject.org, and
used torproject.org as the server name.

I was trying to show how much disk space Prometheus was using and
couldn't find good answers.

donate: rewrite activity diagram to clarify the perk data workflow

See merge request !66

It wasn't clear to me exactly what was going on with those
notes. Ideally, we'd also find a way to automate that synchronization
process (as mentioned above), so it feels better to make an actual
arrow there, even though it doesn't fully reflect the way this
actually works underneath.

I also feel it looks *much* better to move the CiviCRM column to the
left.

See: tpo/web/donate-neo#79

/assign_reviewer @stephen

Closes: tpo/web/donate-neo#79

this was postponed from 2024 and seems relevant

Major documentation updates made to:
- Design and architecture
  - Written description regarding how and why donate-neo design diverged between initial planning and execution
  - Mermaid diagrams outlining both DI-driven data relationships between Django apps and user donation checkout flow
- Technical debt, outlining the friction between donate-neo's PII minimal handling and Stripe Radar's fraud detection algorithm

Minor documentation updates made to:
- Queues, regarding the custom Resque handler and PayPal IPN handling
- Interfaces, regarding PayPal IPN handling
- Implementation, clarifying that CSS and JS are managed via NPM rather than NVM (which itself simply manages local NPM versioning)
- Tests, listing the command for running unit tests

also add a wildcard to the suggested find command so that it matches
things like `hostname.torproject.org.yaml`

Found in team#41977

We also explicitly check for None, instead of assuming truth value,
this allows a user to pass "" as a username if they *really* want to
shoot themselves in the foot.