Update dev setup and commands in README

README.md

@@ -5,16 +5,15 @@
 1. Install Node.js 12 or later and NPM
 2. Clone the repository
 3. `npm install`
+4. `pip install pre-commit`
+5. `pre-commit install`
 
 ## Common operations
 
 * `npm run build`: Build for development, no Docker image
 * `npm start`: Start a local development server on `localhost:8080`
 * `npm run production`: Build for production, no Docker image
-* `npm run lint`: Perform ESLint checks
-* `npm run lintfix`: Perform ESLint checks and try to automatically fix some issues
-* `npm run test`: Run unit tests
-* `npm run start-test`: Run unit tests, then watch for edits and re-run with each change
+* `npm run test` or `npm t`: Run unit tests
 
 * `make build`: Build to a local Docker image using latest GitLab CI artifact
 * `make clean`: Clean build stuff