* Check docs examples II
* rebase and update
* fix root crate macro expansion in doctest snippets
* clean up and fmt
* add xtask run-doc-test subcommand and check in CI
* address review comments
* remove commented printlns
* fix the host target check
* rebase and update
* hide docs for before_snippet macro and remove commented block code in twai
* Remove version from path dependencies in `examples` and `hil-test` packages
* Remove unused constant from `esp-println`
* Consistent badges across `README.md` files