[projmgr] Update documentation links in schemas

[spcaipers-arm]

Address #1905

[github-actions]

Test Results

    3 files     18 suites   9m 10s ⏱️
  381 tests   381 ✅ 0 💤 0 ❌
1 143 runs  1 143 ✅ 0 💤 0 ❌

Results for commit 61d09f3.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.16%. Comparing base (2b0b83d) to head (61d09f3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1909   +/-   ##
=======================================
  Coverage   65.16%   65.16%           
=======================================
  Files         173      173           
  Lines       34847    34847           
  Branches    20227    20227           
=======================================
  Hits        22707    22707           
- Misses       7956     7960    +4     
+ Partials     4184     4180    -4     

Flag	Coverage Δ
projmgr-cov	81.87% <ø> (ø)

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see 1 file with indirect coverage changes