Update app.py

app.py

@@ -5,9 +5,9 @@ A vocabulary puzzle game with an 8x6 grid and 6 hidden words.
 This is the Gradio version, running alongside the Streamlit app.
 
 Usage:
-    python gradio_app.py
+    python app.py
     # or
-    gradio gradio_app.py
+    gradio app.py
 """
 
 import os