chore(readme): add badges

README.md

@@ -1,3 +1,11 @@
 # tree-sitter-query
 
+[![CI][ci]](https://github.com/tree-sitter-grammars/tree-sitter-query/actions/workflows/ci.yaml)
+[![discord][discord]](https://discord.gg/w7nTvsVJhm)
+[![matrix][matrix]](https://matrix.to/#/#nvim-treesitter:matrix.org)
+
 A tree-sitter parser for tree-sitter query files (scheme-like).
+
+[ci]: https://img.shields.io/github/actions/workflow/status/tree-sitter-grammars/tree-sitter-query/ci.yaml?logo=github&label=CI
+[discord]: https://img.shields.io/discord/1063097320771698699?logo=discord&label=tree-sitter
+[matrix]: https://img.shields.io/matrix/nvim-treesitter%3Amatrix.org?logo=matrix&label=nvim-treesitter