Instead of using this https link you could use the ssh or git link.
Try:
ssh://git@<githuburl.git>
or just
git@<githuburl.git>
Then you could run the below command so that the url will set to the remote then you can do whatever changes and you can push the changes.
git remote set-url origin git@<githuburl.git>
For more commands like this please go through the following tutorial that will help you understand the git