Update app.py

app.py

@@ -8,7 +8,7 @@ def extract_text(file):
 
 #Ask Dr Ahmad about which LLM to use and if we have a token for it
 with gr.Blocks() as demo:
-    file_input = gr.File(label="Upload a research paper as a pdf file", file_types=["pdf"])
+    file_input = gr.File(label="Upload a research paper as a pdf file", file_types=[".pdf"])
     text_output = gr.Textbox(label="Extracted Text")
     
     file_input.change(fn=extract_text, inputs=file_input, outputs=text_output)