I've never tested this before actually... huh, that was easy. 🤘

First lets create a new branch to add our LICENSE.

master > git checkout -B branch-01

After we've added our LICENSE, let's create a PR and pre-fill our title and description with our commits.

branch-01 > gh pr create --fill

Then let's merge that PR with merge, github-cli will merge to our requested branch master and take care of the clean up both locally and remote and delete branch-01

branch-01 > gh pr merge

Now locally we have been moved back into our master branch.

master > .

Our steps are exactly the same expect we're using regular git, so let's create our new branch.

master > git checkout -B branch-02

Then to merge we go to the branch we wanna merge into, in this case master

branch-02 > git checkout master

To merge into our branch we use the merge command and add the branch we want to merge into master, in this case branch-02

master > git merge branch-02

Now we can push our changes to remote.

master > git push origin master

Now we have to do the clean-up on remote and local ourselves, so let's push a delete request to our remote branch-02 branch, and delete it locally.

master > git push --delete origin branch-02
master > git branch -D branch-02