Astro Support in Zed

1st chunk of `docs/src/languages/astro.md`

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# Astro

Astro support is available through the [Astro extension](https://github.com/zed-extensions/astro).

- Tree-sitter: [virchau13/tree-sitter-astro](https://github.com/virchau13/tree-sitter-astro)
- Language Server: [withastro/language-tools](https://github.com/withastro/language-tools)

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Title: Astro Support in Zed

Summary

Zed supports the Astro framework through the Astro extension. This extension uses the tree-sitter parser from virchau13 and the language server from withastro to provide language support for Astro files.