Update README.md

README.md

@@ -11,3 +11,44 @@ pinned: false
 # Transformer Notes App
 
 A React app to annotate and save notes on the Transformer architecture. Click 'Save Notes' to download a screenshot of your filled-in diagram.
+
+---
+
+## **How to Fix**
+
+You need to update your Dockerfile to use port 7860 for both the `EXPOSE` and the `serve` command.
+
+### **Correct Dockerfile**
+
+```dockerfile
+# Stage 1: Build the app
+FROM node:20 AS build
+
+WORKDIR /app
+COPY . .
+RUN npm install
+RUN npm run build
+
+# Stage 2: Serve the app
+FROM node:20 AS serve
+
+WORKDIR /app
+RUN npm install -g serve
+COPY --from=build /app/dist ./dist
+
+EXPOSE 7860
+CMD ["serve", "-s", "dist", "-l", "7860"]
+```
+
+---
+
+## **What to Do Next**
+
+1. **Update your Dockerfile** as shown above.
+2. **Commit and push** the change to your repository (or re-upload to Hugging Face Spaces).
+3. Hugging Face will rebuild your Space, and your app should now start and be detected as healthy.
+
+---
+
+Would you like me to make this change for you?  
+If yes, I’ll update your Dockerfile right now!