- Get a repository's readme file's content
https://api.github.com/repos/tiandiduwuxiaoxiao/pythonProble/readme
- Get a repository's any file's content
https://api.github.com/repos/tiandiduwuxiaoxiao/pythonProble/contents/index.py
You can refer to the documentation
get file content via this API then can use atob() to decode the message