Spot when implementations change, but docs don't.

The nudge tool suggests documentation that might need review, based on changes to implementations.

Without any options, nudge checks the current repository's working tree against the latest commit. Alternatively, specify a revision range like --revisions=main..branch. Ignore file header comments with --ignore-headers. To use Nudge in GitHub Actions, pass the --format=github option. This annotates found docs in the GitHub file viewer.

Nudge can work with any language that has a Tree Sitter grammar. Currently the following are implemented:

• C
• Go
• Rust

Folders in your open workspace are checked when a supported file is saved, and info squiggles are added to relevant docs. Enable/disable linting with the 'Toggle Nudge' command.