Fix typo: update year to 2023#916

Aneeza-Khalil wants to merge 1 commit intoibm-developer-skills-network:mainibm-developer-skills-network/mcino-Introduction-to-Git-and-GitHub:mainfrom

Aneeza-Khalil:bug-fix-typoAneeza-Khalil/mcino-Introduction-to-Git-and-GitHub:bug-fix-typoCopy head branch name to clipboard