add helix editor

README.md

@@ -344,6 +344,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
 * [vamolessa/pepper](https://github.com/vamolessa/pepper) [[pepper](https://crates.io/crates/pepper)] — An opinionated modal editor to simplify code editing from the terminal [![build badge](https://github.com/vamolessa/pepper/workflows/rust/badge.svg?branch=master)](https://github.com/vamolessa/pepper)
 * [xi-editor](https://github.com/xi-editor/xi-editor) — A modern editor with a backend written in Rust.
 * [xray](https://github.com/atom-archive/xray) — An experimental next-generation Electron-based text editor. [![build badge](https://api.travis-ci.org/atom/xray.svg?branch=master)](https://travis-ci.org/atom/xray)
+* [helix](https://github.com/helix-editor/helix) — A post-modern modal text editor inspired by Neovim/Kakoune. [![build badge](https://github.com/helix-editor/helix/actions/workflows/build.yml/badge.svg)](https://github.com/helix-editor/helix/actions)
 
 ### Text processing