Update app.py with improved instructions for the Room Cleaner feature

app.py

@@ -160,7 +160,11 @@ def run_sync(*args):
 
 
 with gr.Blocks() as demo:
-    gr.Markdown("# 🌊 ...")
+    gr.Markdown("""
+                # 🧹 Room Cleaner
+                Upload an image and and use pen tool (pencil icon at the bottom) to mark the areas you want to remove.
+                Click on the "Run" button to process the image and remove the marked areas.
+                """)
     with gr.Row():
         with gr.Column():
             # The image overflow, fix