chore: add contributing

README.md

@@ -1,2 +1,40 @@
 # panda-vscode
+
 The official Panda CSS VSCode extension
+
+## Contributing
+
+### Setup
+
+```bash
+yarn install
+```
+
+### Development
+
+```bash
+yarn dev
+```
+
+Then start the VSCode extension development host with [the `Run extension` launch config.](.vscode/launch.json)
+
+### Build
+
+```bash
+yarn build
+```
+
+### Test
+
+```bash
+yarn test
+```
+
+```bash
+yarn typecheck
+```
+
+### Publishing
+
+Done automatically when the release PR (generated with
+[Changesets](https://github.com/changesets/changesets/blob/main/docs/adding-a-changeset.md)) is merged.