Install Docs that Work on MacOS 10.14 (#7561)
Install Docs that Work on MacOS 10.14 (#7561)

Merge pull request 7561
jaybe-jekyll/jekyll,ryanshaw/jekyll,fulldecent/jekyll,Strangehill/jekyll,fulldecent/jekyll,tillgrallert/jekyll,x-way/jekyll,jekyll/jekyll,ryanshaw/jekyll,jaybe-jekyll/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,tillgrallert/jekyll,Strangehill/jekyll,fulldecent/jekyll,jaybe-jekyll/jekyll,x-way/jekyll,x-way/jekyll,ryanshaw/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,tillgrallert/jekyll,ryanshaw/jekyll,jekyll/jekyll,jekyll/jekyll,tillgrallert/jekyll,fulldecent/jekyll,jaybe-jekyll/jekyll,chrisfinazzo/jekyll,x-way/jekyll,chrisfinazzo/jekyll,tillgrallert/jekyll,yhironaka/yhironaka.github.io,Strangehill/jekyll,jekyll/jekyll