Build pkgdown since I can't fix the auto build

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 51.49%. Comparing base (3966ac1) to head (c2c9ae9). Report is 2 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #256 +/- ## ======================================= Coverage 51.49% 51.49% ======================================= Files 19 19 Lines 637 637 ======================================= Hits 328 328 Misses 309 309 ```

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