* docs: Make contributing.md slightly more clear for newer contributors
* Remove accidental backticks
Rearrange overview of commands
* Placed on wrong line
* Add extra overview command
* Fix Windows OSError
* Ignore .pyd files
* Put things in modules
* Rename functions to `run`
* Expand on cargo xtask
* Try to work around missing installs
* Run all things by default, but not llvm-cov
* Test msrv
* Fix more OSErrors
* Various refinements and docs
* Various refinements
* Various refinements