Update docs for new roxygen2 v7.3.1

[stufield]

Overview of Pull Request

• Bumping the roxygen note in the DESCRIPTION file for new v7.3.1

Main Changes

• bump in DESCRIPTION
• re-document package

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.06%. Comparing base (c6e2233) to head (66aaac8).
Report is 6 commits behind head on main.

❗ Current head 66aaac8 differs from pull request most recent head 82399b7. Consider uploading reports for the commit 82399b7 to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
+ Coverage   73.88%   74.06%   +0.17%     
==========================================
  Files          39       39              
  Lines        1455     1465      +10     
==========================================
+ Hits         1075     1085      +10     
  Misses        380      380              

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[scheidec]

Looks good!