docs: update contributors

Author: github-actions[bot]

README.md

@@ -284,6 +284,7 @@ cargo run -- --help
 ## 👥 Contributors
 
 <!-- readme: contributors -start -->
+[![CalvinAllen](https://avatars.githubusercontent.com/u/41448698?v=4&s=64)](https://github.com/CalvinAllen) 
 <!-- readme: contributors -end -->
 
 ---