Reflect feedback

I reflect feedback on these documents.

Add a link to a license

I add a link to the license of the embedded data.

Improve charts

I improve charts and make some changes.

Stop if an assertion fails

I use assertthat::are_equal with assertthat::assert_that to stop knitr if an assertion fails.

Use Stan

I added examples to use Stan in R with the cmdstanr R package.

Add books

I added books for developing Shiny apps.

Include text files

I changed chunks to include text files 'as is'.

Initial release

Initial release