Update app.py

app.py

@@ -30,6 +30,7 @@ def hadet(x):
     return f"Hadet, {x}"
 
 with gr.Blocks() as blk:
+    gr.Markdown("# Gradio Blocks (3.0) with REST API")
     t = gr.Textbox()
     b = gr.Button("Hallo")
     a = gr.Button("Hadet")
@@ -38,6 +39,7 @@ with gr.Blocks() as blk:
     a.click(hadet, inputs=[t], outputs=[o])
     gr.Markdown("""
 ## API
+Can select which function to use by passing in `fn_index`:
 ```python
 import requests