Update app.py

app.py

@@ -71,10 +71,10 @@ def inference(pdf_file, pdf_link, file_btn):
   content = sequence.replace(r'\(', '$').replace(r'\)', '$').replace(r'\[', '$$').replace(r'\]', '$$')
 
   if file_btn:
-    with open(f"{os.getcwd()}/output.txt","w+") as f:
+    with open(f"{os.getcwd()}/output.md","w+") as f:
       f.write(content)
       f.close()
-    file_path = f"{os.getcwd()}/output.txt"
+    file_path = f"{os.getcwd()}/output.md"
       
   return content, file_path