docs: rework the README to the org layout

Follow the layout the other cpp-linter READMEs move to: name, one
sentence, a link line, then the existing Build and "Files other projects
use" sections, Contributing and License. No badges: this is the site
the other READMEs' "part of cpp-linter" badge links to.

The Website and "What You'll Find" sections repeated the link line and
the site's navigation. The fonts directory URL returns 404 (Pages has
no directory index), so show it as a path instead of a link.

Author: shenxianpeng

README.md

@@ -1,28 +1,11 @@
 # cpp-linter.github.io
 
-[![Website](https://img.shields.io/static/v1?logo=googlechrome&logoColor=white&label=Website&message=cpp-linter.github.io&color=yellow)](https://cpp-linter.github.io/)
-[![GitHub Org](https://img.shields.io/badge/github-cpp--linter-181717?logo=github)](https://github.com/cpp-linter)
-[![License](https://img.shields.io/github/license/cpp-linter/cpp-linter.github.io)](LICENSE)
-[![MkDocs](https://img.shields.io/badge/docs-MkDocs%20Material-526CFE?logo=materialformkdocs&logoColor=white)](https://cpp-linter.github.io/)
+The source of <https://cpp-linter.github.io/>: the home page, Get started, Why cpp-linter, the
+showcase, the blog and the community and sponsor pages.
 
-Documentation website for the `cpp-linter` project and organization.
-
-This repository hosts the public site at <https://cpp-linter.github.io/>, including the homepage, getting started guides, and community links for the C/C++ linting ecosystem around `cpp-linter`.
-
-## Website
-
-- Main site: <https://cpp-linter.github.io/>
-- GitHub organization: <https://github.com/cpp-linter>
-
-## What You'll Find
-
-- Project overview and landing page content
-- Getting started documentation
-- "Why cpp-linter?": how the toolchain compares with other clang-format / clang-tidy actions and hooks
-- Showcase of open-source projects that use cpp-linter
-- Blog posts and guides
-- Links to the clang tools packages (pip, Homebrew, asdf, static binaries, Docker images, wheels)
-- Community entry points and the sponsor page
+[Website](https://cpp-linter.github.io/) ·
+[Get started](https://cpp-linter.github.io/getting-started/) ·
+[Discussions](https://github.com/orgs/cpp-linter/discussions)
 
 ## Build
 
@@ -39,7 +22,16 @@ without updating those repositories:
 - `docs/stylesheets/shared.css`, served at <https://cpp-linter.github.io/stylesheets/shared.css>,
   is loaded by the docs sites of cpp-linter-action, cpp-linter, clang-tools-pip and cpp-linter-rs.
   It carries the site's look (colors, header, fonts), so a change to it changes all of them.
-- `docs/fonts/`, served at <https://cpp-linter.github.io/fonts/>, holds the fonts that
+- `docs/fonts/`, served under `https://cpp-linter.github.io/fonts/`, holds the fonts that
   `shared.css` declares (SIL Open Font License 1.1). Keep the file names in sync with it.
 - `docs/install-wheel.sh`, served at <https://cpp-linter.github.io/install-wheel.sh>, is used by
   the clang-tools-wheel README and its release workflow.
+
+## Contributing
+
+See the [contributing guide](https://github.com/cpp-linter/.github/blob/main/CONTRIBUTING.md) and
+[open an issue](https://github.com/cpp-linter/cpp-linter.github.io/issues) for anything wrong on the site.
+
+## License
+
+[MIT](https://github.com/cpp-linter/cpp-linter.github.io/blob/main/LICENSE)