Added utf-8 encoding to write the python file for windows compatibility

LLMCode/utils/document.py

@@ -137,5 +137,5 @@ def add_msg(msg, where, element, script_content):
                         script_content,
                     )
                     pass
-    with open(script, "w") as python_file:
+    with open(script, "w", encoding="utf-8") as python_file:
         python_file.write(script_content)