Update plugins.md (#6750)
Update plugins.md (#6750)

Merge pull request 6750
x-way/jekyll,getandpost/jekyll.github.io,tillgrallert/jekyll,fulldecent/jekyll,jekyll/jekyll,tillgrallert/jekyll,Strangehill/jekyll,getandpost/jekyll.github.io,jaybe-jekyll/jekyll,x-way/jekyll,ryanshaw/jekyll,fulldecent/jekyll,getandpost/jekyll.github.io,fulldecent/jekyll,ryanshaw/jekyll,jaybe-jekyll/jekyll,jaybe-jekyll/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,tillgrallert/jekyll,chrisfinazzo/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,x-way/jekyll,jaybe-jekyll/jekyll,yhironaka/yhironaka.github.io,tillgrallert/jekyll,jekyll/jekyll,Strangehill/jekyll,x-way/jekyll,Strangehill/jekyll,ryanshaw/jekyll,chrisfinazzo/jekyll,Strangehill/jekyll,tillgrallert/jekyll,ryanshaw/jekyll,jekyll/jekyll,fulldecent/jekyll