Improve the text at the top of the home page#8242

Quintaqu wants to merge 5 commits intoMicrosoftDocs:mainMicrosoftDocs/mslearn-tailspin-spacegame-web:mainfrom

Quintaqu:feature/home-page-textQuintaqu/mslearn-tailspin-spacegame-webqq:feature/home-page-textCopy head branch name to clipboard