Use Python 3.11 for Gradio compatibility

README.md

@@ -1,9 +1,10 @@
 ---
 title: Floor Plan Detection
-emoji: 🏗️
+emoji: 🏠
 colorFrom: blue
 colorTo: green
 sdk: gradio
+python_version: 3.11
 sdk_version: 4.44.0
 app_file: app.py
 pinned: false
@@ -12,3 +13,13 @@ pinned: false
 # Floor Plan Detection
 
 Upload a floor plan image to detect rooms, doors, and windows using Roboflow AI.
+
+## Required Secret
+
+Set this Hugging Face Space secret before using live detection:
+
+```text
+ROBOFLOW_API_KEY
+```
+
+If the secret is missing, the app will still load, but detection results will be empty with an error message.