add qmd as supported value to filetype parameter

[dpprdan]

"qmd" was missing as a supported value from the filetype parameter docs.

I did not roxygenise(), yet.

[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 6a24c73 is merged into main:

Further explanation regarding interpretation and methodology can be found in the documentation.

[IndrajeetPatil]

Not sure how we missed updating this one. Glad you caught it.

Thanks!

[codecov-commenter]

Codecov Report

Merging #1091 (8f97b81) into main (6a24c73) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1091   +/-   ##
=======================================
  Coverage   91.07%   91.07%           
=======================================
  Files          46       46           
  Lines        2711     2711           
=======================================
  Hits         2469     2469           
  Misses        242      242           

Impacted Files	Coverage Δ
R/ui-styling.R	100.00% <ø> (ø)

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 6a24c73 is merged into main:

Further explanation regarding interpretation and methodology can be found in the documentation.