[Feature]: build r markdown automatically

[k-doering-NOAA]

Is your feature request related to a problem? Please describe.

Many people use r markdown documents to document processes. In some cases, it may be helpful to have the ability torender these automatically through github actions rather than having to remember to manually render it locally. While this was not included in the poll on accident, the interest in bookdown suggests that there may also be interest in r markdown rendering.

Describe the solution you would like.

• A new reusable action workflow that updates r markdown and pushes the rendered document where the user desires.
• A new {usethis} style function that will automatically create the necessary files in your repo for you.

Describe alternatives you have considered

With Quarto as an up and coming replacement for r markdown, there may be less people using r markdown. However, I think there are still a large number of r markdown documents out there that people may want to use, and I suspect it is still only early adopters using Quarto so far. I think developing workflows for both r markdown and quarto make sense.

Additional context

No response

[k-doering-NOAA]

Note that an example of rendering a markdown file (in this case a readme) is available at https://github.com/nmfs-fish-tools/SSMSE/blob/main/.github/workflows/render-readme.yml (and also in nmfspalette)