docs: corrects typo in reference url on landing page

[lukegalbraithrussell]

Summary

oops

Testing

Category

• /docs (Documents)

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run python3 -m venv .venv && source .venv/bin/activate && ./scripts/run_validation.sh after making the changes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.14%. Comparing base (04acf86) to head (e6a1815).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@ Coverage Diff @@## main #1779 +/- ##
==========================================
- Coverage 85.15% 85.14% -0.01% 
==========================================
Files 115 115 Lines 13069 13069 ==========================================
- Hits 11129 11128 -1 - Misses 1940 1941 +1 

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