docs: reference upstream docs in docstrings

[lukasmetzner]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.50%. Comparing base (5ceecad) to head (4f19f5e).
⚠️ Report is 1 commits behind head on storage-boxes.

Additional details and impacted files

@@                Coverage Diff                @@
##           storage-boxes     #753      +/-   ##
=================================================
- Coverage          78.53%   78.50%   -0.04%     
=================================================
  Files                 59       59              
  Lines               5619     5619              
=================================================
- Hits                4413     4411       -2     
- Misses               912      914       +2     
  Partials             294      294              

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[apricote]

Found these with lychee --include-fragments hcloud/*.go

[jooola]

Found these with lychee --include-fragments hcloud/*.go

Oh didn't know they implemented that feature already :)