docs: update badges

README.md

@@ -1,7 +1,10 @@
-tree-sitter-ocaml
-=================
+# tree-sitter-ocaml
 
-[![Build Status](https://github.com/tree-sitter/tree-sitter-ocaml/workflows/build/badge.svg)](https://github.com/tree-sitter/tree-sitter-ocaml/actions?query=workflow%3Abuild)
+[![CI][ci]](https://github.com/tree-sitter/tree-sitter-ocaml/actions/workflows/ci.yml)
+[![discord][discord]](https://discord.gg/w7nTvsVJhm)
+[![matrix][matrix]](https://matrix.to/#/#tree-sitter-chat:matrix.org)
+[![crates][crates]](https://crates.io/crates/tree-sitter-ocaml)
+[![npm][npm]](https://www.npmjs.com/package/tree-sitter-ocaml)
 
 OCaml grammar for [tree-sitter](https://github.com/tree-sitter/tree-sitter).
 
@@ -14,6 +17,12 @@ require('tree-sitter-ocaml').interface;
 
 References
 
-* [OCaml language reference](https://ocaml.org/manual/language.html)
-* [OCaml language extensions](https://ocaml.org/manual/extn.html)
-* [OCaml parser](https://github.com/ocaml/ocaml/blob/trunk/parsing/parser.mly)
+- [OCaml language reference](https://ocaml.org/manual/language.html)
+- [OCaml language extensions](https://ocaml.org/manual/extn.html)
+- [OCaml parser](https://github.com/ocaml/ocaml/blob/trunk/parsing/parser.mly)
+
+[ci]: https://img.shields.io/github/actions/workflow/status/tree-sitter/tree-sitter-ocaml/ci.yml?logo=github&label=CI
+[discord]: https://img.shields.io/discord/1063097320771698699?logo=discord&label=discord
+[matrix]: https://img.shields.io/matrix/tree-sitter-chat%3Amatrix.org?logo=matrix&label=matrix
+[npm]: https://img.shields.io/npm/v/tree-sitter-ocaml?logo=npm
+[crates]: https://img.shields.io/crates/v/tree-sitter-ocaml?logo=rust