Update app.py

app.py

@@ -446,7 +446,7 @@ with tab_ocr:
                 doc.close()
             st.image(image, caption="Input Image", use_container_width=True)
             if st.button("Run OCR 🚀", key="ocr_run"):
-                output_file = generate_filename("ocr_output", "txt")
+                output_file = generate_filename("ocr_output", "md")
                 st.session_state['processing']['ocr'] = True
                 result = asyncio.run(process_gpt4o_ocr(image, output_file))
                 entry = f"OCR Test: {selected_file} -> {output_file}"