Book has a wrong link

[muriplz]

https://github.com/rstudio/cheatsheets/raw/master/shiny.pdf
it doesnt exist anymore, It's now at
https://github.com/rstudio/cheatsheets/blob/main/shiny.pdf

and https://oreil.ly/vJbBe points to the old link.

This link can be found in Page 9, Summary of the Chapter 1. First edition of the book