Update app.py

app.py

@@ -49,7 +49,7 @@ def main():
                     loader = loader_class(file_path, **loader_args)
                     loaded_documents.extend(loader.load())
                 else:
-                    st.warning(f"Unsupported file extension: {ext}, the app currently only supports 'pdf'")
+                    st.warning(f"Unsupported file extension: {ext}, the app currently only supports pdf")
 
         st.write("Ask question to get comparison from the documents:")
         query = st.text_input("Ask a question:")