docs: add workaround for not having to quote testthat

[codecov[bot]]

Codecov Report

Merging #21 (2979098) into main (223121a) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 2979098 differs from pull request most recent head 30e8fac. Consider uploading reports for the commit 30e8fac to get more accurate results

@@           Coverage Diff           @@
##             main      #21   +/-   ##
=======================================
  Coverage   77.50%   77.50%           
=======================================
  Files           3        3           
  Lines         120      120           
=======================================
  Hits           93       93           
  Misses         27       27           

Impacted Files	Coverage Δ
R/addins.R	0.00% <ø> (ø)
R/lazytest_local.R	96.49% <ø> (ø)

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[krlmlr]

Thanks. How can we regenerate these files when needed? The .R file is empty, is that correct?

[krlmlr]

Thanks!