docs: add quickstart guides for warden and initia

[technicallyty]

• adds quickstart guides for warden and initia
• changes language around required version. we don't want people using versions above the specified anymore, since v2 has some breaking changes.

[github-actions]

⌛ check-spelling changes applied

As configured, the commit pushed by @check-spelling-bot to GitHub doesn't trigger GitHub workflows due to a limitation of the @github-actions system.

Users with the Admin role can address this for future interactions 🪄

Create a deploy key and secret

(
  set -e
  brand=check-spelling; repo='skip-mev/connect'; SECRET_NAME=CHECK_SPELLING
  cd "$(mktemp -d)"
  ssh-keygen -f "./$brand" -q -N "" -C "$brand key for $repo"
  gh repo deploy-key add "./$brand.pub" -R "$repo" -w -t "$brand-talk-to-bot"
  gh secret -R "$repo" set "$SECRET_NAME" < "./$brand"
)

Configure update job in workflow to use secret

If the .github/workflows/spell.yml workflow Spell checking job doesn't already have the check-spelling/with/ssh_key, then add them:

    name: Spell checking
    ...
    steps:
    ...
    - name: apply spelling updates
      uses: ${action_ref:-check-spelling/check-spelling@...}
      with:
        checkout: true
+       ssh_key: "${{ secrets.CHECK_SPELLING }}"

To trigger another validation round and hopefully a ✅, please add a blank line, e.g. to .github/actions/spelling/expect.txt and commit the change.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.97%. Comparing base (b11a57b) to head (3ebea63).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #770      +/-   ##
==========================================
- Coverage   57.01%   56.97%   -0.04%     
==========================================
  Files         208      208              
  Lines       11626    11626              
==========================================
- Hits         6628     6624       -4     
- Misses       4394     4398       +4     
  Partials      604      604              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.