Added app description

fngradio_various_api_mcp/__main__.py

@@ -1,10 +1,23 @@
 import logging
+import textwrap
 
+import gradio as gr
 from fngradio_various_api_mcp.app import app
 
 
 def main() -> None:
-    app.tabbed().launch(mcp_server=True)
+    with gr.Blocks() as demo:
+        description = textwrap.dedent(
+            """
+            Provides [Gradio](https://github.com/gradio-app/gradio) UI
+            with [MCP](https://modelcontextprotocol.io) server over various public APIs.
+            It is using [fngradio](https://github.com/de-code/fngradio) to
+            make defining a Gradio UI easier.
+            """
+        )
+        gr.Markdown(description)
+        app.tabbed()
+    demo.launch(mcp_server=True)
 
 
 if __name__ == "__main__":