Update readme.md

readme.md

@@ -2,3 +2,35 @@
 
 Web frontend for the [MMP project](https://github.com/acdh-oeaw/mmp). Deployed at
 <https://mmp.acdh.oeaw.ac.at>.
+
+## How to run
+Prerequisites: [Node.js v20](https://nodejs.org/en/download) and [npm v10](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm)
+
+Set required environment variables in `.env`:
+
+```bash
+# Unix
+cp .env.local.example .env.local
+
+# Windows
+copy .env.local.example .env.local
+```
+
+Install dependencies:
+
+```bash
+npm i
+```
+
+Run a development server on [http://localhost:3000](http://localhost:3000):
+
+```bash
+npm run dev
+```
+Build for production:
+```bash
+npm run build
+```
+
+## How to deploy
+Commits pushed to the `main` branch will automatically be deployed to the ACDH-CH cluster via GitHub Actions.