Roc Language Support in Zed

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

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# Roc

[Roc](https://www.roc-lang.org/) is a fast, friendly, functional language.

Roc language support in Zed is provided by the community-maintained [Roc extension](https://github.com/h2000/zed-roc).
Report issues to: [https://github.com/h2000/zed-roc/issues](https://github.com/h2000/zed-roc/issues)

- Tree-sitter: [faldor20/tree-sitter-roc](https://github.com/faldor20/tree-sitter-roc)
- Language Server: [roc-lang/roc/tree/main/crates/language_server](https://github.com/roc-lang/roc/tree/main/crates/language_server)

## Setup

1. Follow instructions to [Install Roc](https://www.roc-lang.org/install) from the Roc-Lang website.
2. Ensure `roc` and `roc_language_server` are in your PATH.

Title: Roc Language Support in Zed

Summary

This section describes the Roc language support in the Zed editor, which is provided by the community-maintained Roc extension. It includes links to the extension's repository, the tree-sitter grammar, and the language server. It also provides instructions on how to set up Roc by installing it and ensuring that `roc` and `roc_language_server` are in your PATH.