Update README.md#37150

MustafaMaherElshekh wants to merge 1 commit intoibm-developer-skills-network:masteribm-developer-skills-network/jbbmo-Introduction-to-Git-and-GitHub:masterfrom

MustafaMaherElshekh:bug-fix-typoMustafaMaherElshekh/jbbmo-Introduction-to-Git-and-GitHub:bug-fix-typoCopy head branch name to clipboard