Add ratatui-code-editor (#185)

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* Link to your project (GitHub/crates.io):
https://github.com/vipmax/ratatui-code-editor

* Description (optional): A code editor widget for
[Ratatui](https://github.com/ratatui/ratatui), built with syntax
highlighting powered by Tree-sitter.

* Screenshot or gif (strongly recommended): <!-- drag & drop or link -->
<img width="1277" height="788" alt="Screenshot 2025-10-09 at 17 50 43"
src="https://github.com/user-attachments/assets/127fd015-1fbf-4e86-8eb6-b5fca963e73a"
/>

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Author: vipmax

README.md

@@ -56,6 +56,7 @@ Aside from those listed here, many other apps and libraries can be easily be fou
 - [ratatui-fretboard](https://crates.io/crates/ratatui-fretboard) - A widget for displaying musical note positions on a fretboard.
 - [ratatui-splash-screen](https://github.com/orhun/ratatui-splash-screen) - A widget to turn any image to a splash screen.
 - [ratatui-textarea](https://crates.io/crates/ratatui-textarea) - A simple yet powerful editor widget for ratatui. Fork of `tui-textarea`.
+- [ratatui-code-editor](https://github.com/vipmax/ratatui-code-editor) - A code editor widget for ratatui, syntax highlighting powered by tree-sitter.
 - [term-rustdoc](https://github.com/zjp-CN/term-rustdoc) - A TUI for Rust docs that aims to improve the UX on tree view and generic code.
 - [throbber-widgets-tui](https://crates.io/crates/throbber-widgets-tui) - A widget that displays throbber.
 - [tui-additions](https://crates.io/crates/tui-additions) - Additions to the rust tui crate.