Add pre commit (#26)

sample_template/main.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 """
 [Your Sample Name] - Entry Point
 
@@ -5,6 +6,7 @@ This example demonstrates [brief description].
 """
 import agentscope
 
+
 def main():
     """Main function to run the example."""
     print(agentscope.__version__)