Improve comment included in the starter index.md (#6916)
Improve comment included in the starter index.md (#6916)

Merge pull request 6916
fulldecent/jekyll,getandpost/jekyll.github.io,x-way/jekyll,jaybe-jekyll/jekyll,fulldecent/jekyll,ryanshaw/jekyll,tillgrallert/jekyll,Strangehill/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,Strangehill/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,x-way/jekyll,getandpost/jekyll.github.io,jekyll/jekyll,x-way/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll,ryanshaw/jekyll,Strangehill/jekyll,jekyll/jekyll,jekyll/jekyll,ryanshaw/jekyll,tillgrallert/jekyll,getandpost/jekyll.github.io,yhironaka/yhironaka.github.io,tillgrallert/jekyll,fulldecent/jekyll,chrisfinazzo/jekyll,jaybe-jekyll/jekyll,jaybe-jekyll/jekyll,Strangehill/jekyll,tillgrallert/jekyll,jekyll/jekyll,tillgrallert/jekyll,x-way/jekyll,jaybe-jekyll/jekyll