ssh-keygen -t rsa -b 4096 -C "[email protected]"
    filename: /c/Users/myusername/.ssh/id_rsa_shorthandforuser

#user1 account
Host github.com-user1
    HostName github.com
    User git
    IdentityFile ~/.ssh/id_rsa_user1

#user2 account
Host github.com-user2
    HostName github.com
    User git
    IdentityFile ~/.ssh/id_rsa_user2

ssh-add ~/.ssh/id_rsa_shorthandforuser

git clone [email protected]:someusername/somerepository.git