documentationgood first issuehelp wanted
Description
We now have both Formatting and Preparation as places where we explain how to install the necessary tooling. I would suggest that we unify this into a single location (I'm thinking CONTRIBUTING.md) and then point people to that file from both TRANSLATIONS.md and README.md etc.
Originally posted by @mgeisler in https://github.com/google/comprehensive-rust/issues/1394#issuecomment-1778854142