feat: use go tool

node_modules/markdownlint/helpers/README.md

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+# markdownlint-rule-helpers
+
+> A collection of `markdownlint` helper functions for custom rules
+
+## Overview
+
+The [Markdown][markdown] linter [`markdownlint`][markdownlint] offers a variety
+of built-in validation [rules][rules] and supports the creation of [custom
+rules][custom-rules]. The internal rules share various helper functions; this
+package exposes those for reuse by custom rules.
+
+## API
+
+*Undocumented* - This package exports the internal functions as-is. The APIs
+were not originally meant to be public, are not officially supported, and may
+change from release to release. There are brief descriptive comments above each
+function, but no [JSDoc][jsdoc] annotations. That said, some of what's here will
+be useful to custom rule authors and may avoid duplicating code.
+
+## Tests
+
+*None* - The entire body of code is tested to 100% coverage by the core
+`markdownlint` project, so there are no additional tests here.
+
+[custom-rules]: https://github.com/DavidAnson/markdownlint/blob/v0.40.0/doc/CustomRules.md
+[jsdoc]: https://en.m.wikipedia.org/wiki/JSDoc
+[markdown]: https://en.wikipedia.org/wiki/Markdown
+[markdownlint]: https://github.com/DavidAnson/markdownlint
+[rules]: https://github.com/DavidAnson/markdownlint/blob/v0.40.0/doc/Rules.md