* TOC level 3
* drop `.golangci.yaml` from the Configuration page
* generate a dedicated configuration section for each linters.
* fix changelog heading
Inline @rocketseat theme for Gatsby
because we need a lot of changes.
Fix bad GitHub edit url, next/prev links,
external links without target="_blank".
Make a website https://golangci-lint.run
for golangci-lint documentation.
The website is backed by Gatsby static site generator
and deployed into Netlify.
