feat!: enable show source links

[machow]

This PR adds a show source link to rendered item docs. Addresses #354

[codecov-commenter]

Codecov Report

❌ Patch coverage is 77.63158% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.18%. Comparing base (4739a4e) to head (8a18dbd).
⚠️ Report is 58 commits behind head on main.

Files with missing lines	Patch %	Lines
quartodoc/repo_info.py	78.04%	9 Missing ⚠️
quartodoc/renderers/md_renderer.py	60.00%	6 Missing ⚠️
quartodoc/autosummary.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #363      +/-   ##
==========================================
- Coverage   88.46%   88.18%   -0.29%     
==========================================
  Files          37       39       +2     
  Lines        2931     3005      +74     
==========================================
+ Hits         2593     2650      +57     
- Misses        338      355      +17     

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[cliffckerr]

Would love to have this feature! Any estimate of when it will be released?

[michaelaye]

I just had Claude Code do a deep research on my quartodoc sourcelink options, it found this PR but suggested to create our own and give it back here. So it made this custom renderer, maybe this would help for an official implementation here? Seems to work fine, see an example here. Hope it helps and thanks for quartodoc!