basic README

README.md

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+# tree-sitter-quint 
+
+Work in progress Tree Sitter grammar for [Quint](https://quint-lang.org/).
+Mainly to get editor support in [Helix](https://helix-editor.com/).
+
+To avoid tracking build artifacts in Git, 
+the generated parser is not included on the `master` branch.
+Check the `release` branch instead.
+
+## Example Helix Config (for now):
+
+```toml
+# languages.toml
+
+[[language]]
+comment-token = "//"
+file-types = ["qnt"]
+language-servers = ["quint-lsp"]
+name = "quint"
+scope = "source.quint"
+block-comment-tokens = { start = "/*", end = "*/" }
+tab-width = 2
+unit = "  "
+
+[[grammar]]
+name = "quint"
+source = { git = "https://github.com/gruhn/tree-sitter-quint.git", rev = "release" }
+
+[language-server.quint-lsp]
+args = ["--stdio"]
+command = "quint-language-server"
+```