Fix typo in footer: update year to 2023#1183

saifhassan-555 wants to merge 1 commit intoibm-developer-skills-network:mainibm-developer-skills-network/mcino-Introduction-to-Git-and-GitHub:mainfrom

saifhassan-555:bug-fix-typosaifhassan-555/mcino-Introduction-to-Git-and-GitHub:bug-fix-typoCopy head branch name to clipboard