How to switch between GitHub accounts?

Question

git

Windows 8.1
I have 2 github accounts and 2 projects. From one account I need to push to one project, from another to another.
when I do it from Windows (I use git bash), I write git push, I am asked for a login / password for the first time

, everything is ok. then I try to push to another project, and it writes Repository not found. I understood why, because Windows Credential Manager remembers the previously entered login / password of the first account, and from it I do not have access to the second project.
question - how do I implement switching between accounts?
maybe you can make git ALWAYS ask for a username / password, and then I will enter the data that is needed to access the desired project?