Update gradio app

gradio_app.py

@@ -1,7 +1,9 @@
 import gradio as gr
+import RAG
 
-def greet(name):
-    return "Hello " + name + "!!"
+dropdown = gr.Dropdown(choices=["distilbert-base-uncased-distilled-squad",
+                                       "impira/layoutlm-document-qa", 
+                                       "impira/layoutlm-invoices"], label="Choose a model")
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
+iface = gr.Interface(fn=RAG.gradio_adapted_RAG, inputs=[dropdown, "text"], outputs="text")
 iface.launch()