how to change the default branmch in github code example
Example 1: change git default branch
git config --global init.defaultBranch <defaultBranchName>
Example 2: change default branch github
On GitHub, navigate to the main page of the repository.
Under your repository name, click Settings.
In the left menu, click Branches.
Under "Default branch", to the right of the default branch name, click .
Use the drop-down, then click a branch name.
Click Update.