Fix a small grammar error/typo in the docs (#7260)
Fix a small grammar error/typo in the docs (#7260)

Merge pull request 7260
tillgrallert/jekyll,tillgrallert/jekyll,x-way/jekyll,fulldecent/jekyll,jekyll/jekyll,ryanshaw/jekyll,x-way/jekyll,Strangehill/jekyll,ryanshaw/jekyll,tillgrallert/jekyll,jaybe-jekyll/jekyll,Strangehill/jekyll,Strangehill/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,jekyll/jekyll,yhironaka/yhironaka.github.io,jaybe-jekyll/jekyll,Strangehill/jekyll,fulldecent/jekyll,fulldecent/jekyll,jekyll/jekyll,ryanshaw/jekyll,x-way/jekyll,jaybe-jekyll/jekyll,tillgrallert/jekyll,jaybe-jekyll/jekyll,chrisfinazzo/jekyll,chrisfinazzo/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,tillgrallert/jekyll,x-way/jekyll,fulldecent/jekyll