app & requirements files have been added for demo

app.py

@@ -0,0 +1,10 @@
+import gradio as gr
+
+def greet(name):
+    return "Hello " + name + "!!"
+
+iface = gr.Interface(fn=greet, 
+                     inputs="text", 
+                     outputs="text",
+                     title = "MedQnA Application")
+iface.launch()

requirements.txt

@@ -0,0 +1,2 @@
+numpy
+gradio