docs: fix link to reference

[Borda]

Why are these changes needed?

it does not render as a link in the docs, see: https://microsoft.github.io/FLAML/docs/reference/default/greedy

Related issue number

Checks

• I've included any doc changes needed for https://microsoft.github.io/FLAML/. See https://microsoft.github.io/FLAML/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[Borda]

@sonichi, I do not think that my docs fix would break the code as the tests are failing now; it is coming from the master or some flaky cases?

[sonichi]

This looks an issue related to spark. @thinkall for awareness.

[Borda]

seems that very same test are failing also on main branch so would be worse to check it to unblock all pending PRs

[thinkall]

This looks an issue related to spark. @thinkall for awareness.

I've raised a PR #1274 to fix the issues.

[thinkall]

LGTM. Thanks.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b645da3) 71.72% compared to head (0d2039c) 71.59%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1263      +/-   ##
==========================================
- Coverage   71.72%   71.59%   -0.13%     
==========================================
  Files          83       83              
  Lines       11249    11249              
  Branches     2360     2360              
==========================================
- Hits         8068     8054      -14     
- Misses       2726     2738      +12     
- Partials      455      457       +2     

Flag	Coverage Δ
unittests	71.47% <ø> (-0.13%)	⬇️

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[Borda]

@sonichi kindly reminder for review... 🐿️