Add zed-comment project to README (#52)

Author: thedadams

README.md

@@ -94,6 +94,7 @@ it requires some manual parsing in C.
 
 - [nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter)
 - [helix](https://github.com/helix-editor/helix)
+- [zed-comment](https://github.com/thedadams/zed-comment)
 - Yours?
 
 ## Other grammars