Add Gradio app.py and dependencies for deployment

app.py

@@ -0,0 +1,7 @@
+import gradio as gr
+
+def greet(name):
+    return f"Hello, {name} ! Welcome to AISA"
+
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+demo.launch()

requirements.txt

@@ -0,0 +1 @@
+gradio