[git] Authentication failed for xxxx

问题：example  The authenticity of host 'github.com (xx.xx.xx.xx)' can't be established.

git remote set-url origin git@github.com:usrName/{library}.git

ssh-keygen -t ed25519 -C "your_email@example.com"

cat ~/.ssh/id_ed25519.pub

复制cat出来的内容到 下图 第4步