Add find_model_names to 'other functions'

[florence-bockting]

Description

In PR #300 the new function find_model_names() was not included in the _pkgdown.yml leading to failing GitHub Action during build_site() when merging to main. This PR should fix this problem.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.70%. Comparing base (c0217c0) to head (4c7a153).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #362   +/-   ##
=======================================
  Coverage   92.70%   92.70%           
=======================================
  Files          31       31           
  Lines        3029     3029           
=======================================
  Hits         2808     2808           
  Misses        221      221           

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 4c7a153 is merged into master:

• ✔️loo_function: 1.79s -> 1.79s [-0.56%, +0.54%]
• ❗🐌loo_matrix: 1.3s -> 1.31s [+0.39%, +1.79%]
  Further explanation regarding interpretation and methodology can be found in the documentation.