diff --git a/README.md b/README.md
index 4ec096f..7b3be49 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,30 @@
-[Video Demo]
+# screenshot-to-html
 
-### Instructions
+This is a simple app that converts a screenshot to HTML (uses Tailwind CSS). It uses GPT-4 Vision to generate the code.
 
-Run the backend
+[Video GIF]
+
+## Getting Started
+
+The app has a React/Vite front-end and a FastAPI backend. You will need an OpenAI API key with access to the GPT-4 Vision API.
+
+In the root directory,
 
 ```bash
+cd backend
+echo "OPENAI_API_KEY=sk-your-key" > .env
 poetry install
 poetry run uvicorn main:app --reload --port 7000
-```
-
-Run the frontend,
-
-```bash
+cd ..
+cd frontend
 yarn
 yarn dev
 ```
 
+Open http://localhost:5173 to use the app.
+
+If you prefer to run the backend on a different port, just modify VITE_WS_BACKEND_URL=ws://127.0.0.1:7000 in .env.local.
+
 ## Hosted Version
 
 Hosted version coming soon at https://picoapps.xyz
-
-### Environment Variables
-
-.env.local contains
-VITE_WS_BACKEND_URL=ws://127.0.0.1:7000