docs: fix broken links in v1alpha2 docs

[eddycharly]

Explanation

Fix broken links in v1alpha2 docs.

[eddycharly]

/cherry-pick release-0.2

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.60%. Comparing base (01c20fb) to head (cf2a39a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1505      +/-   ##
==========================================
- Coverage   67.62%   67.60%   -0.03%     
==========================================
  Files         136      136              
  Lines        6484     6486       +2     
==========================================
  Hits         4385     4385              
- Misses       1785     1787       +2     
  Partials      314      314              

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