docs: Added letter section to add home page in basic setup doc#295

Fran-A-Dev wants to merge 3 commits intomainwpengine/faustjs.org:mainfrom

Fix-Add-a-index.js-file-to-the-pages-dirwpengine/faustjs.org:Fix-Add-a-index.js-file-to-the-pages-dirCopy head branch name to clipboard