Adding YearMonth function

[mb-tec]

No description provided.

[stevelacey]

Can you squash these commits?

git rebase -i HEAD~7

And change all but the first commit from pick to f for fixup, and it’ll squash the changes into your first commit, you can then git push -f your branch

[stevelacey]

@mb-tec github can squash+merge now 😁 thanks for your contribution ✌️