Update plugins.md
Update plugins.md

I have written a liquid filter to make email protection for static websites easy. This plugin contains the `protect_email` filter which encodes email addresses similar to the way GitHub does for the user profiles.
pmarsceill/jekyll,stomar/jekyll,noikiy/jekyll,rlugojr/jekyll,jeffkole/jekyll,fulldecent/jekyll,tillgrallert/jekyll,noikiy/jekyll,jeffkole/jekyll,alex-kovac/jekyll,bsmr-ruby/jekyll,getandpost/jekyll.github.io,Strangehill/jekyll,jeffkole/jekyll,xiebinhqy/jklly_china,tillgrallert/jekyll,bsmr-ruby/jekyll,brint/jekyll,rasa2011/rasa2011.github.io,tomjohnson1492/jekyll,zsyed91/jekyll,derekgottlieb/jekyll,alfredxing/jekyll,jekyll/jekyll,ZDroid/jekyll,brint/jekyll,rlugojr/jekyll,jaybe-jekyll/jekyll,pmarsceill/jekyll,xcatliu/jekyllcn,darwin/jekyll,ryanshaw/jekyll,brint/jekyll,x-way/jekyll,tillgrallert/jekyll,derekgottlieb/jekyll,alex-kovac/jekyll,xcatliu/jekyllcn,chrisfinazzo/jekyll,Kinghack/kinghack.github.com,mrb/jekyll,Kinghack/kinghack.github.com,mrb/jekyll,noikiy/jekyll,getandpost/jekyll.github.io,ryanshaw/jekyll,chrisfinazzo/jekyll,chrisfinazzo/jekyll,ajhit406/jekyll,x-way/jekyll,rasa2011/rasa2011.github.io,alex-kovac/jekyll,ajhit406/jekyll,brint/jekyll,ryanshaw/jekyll,ajhit406/jekyll,nasht00/jekyll,darwin/jekyll,tillgrallert/jekyll,xcatliu/jekyllcn,stomar/jekyll,nasht00/jekyll,jaybe-jekyll/jekyll,jeffkole/jekyll,alfredxing/jekyll,floydpraveen/jekyll,mrb/jekyll,gencer/jekyll,xiebinhqy/jklly_china,x-way/jekyll,getandpost/jekyll.github.io,ZDroid/jekyll,tomjohnson1492/jekyll,tillgrallert/jekyll,stomar/jekyll,xiebinhqy/jklly_china,floydpraveen/jekyll,rasa2011/rasa2011.github.io,jaybe-jekyll/jekyll,ajhit406/jekyll,gencer/jekyll,nasht00/jekyll,jekyll/jekyll,floydpraveen/jekyll,Kinghack/kinghack.github.com,princeofdarkness76/jekyll,gencer/jekyll,princeofdarkness76/jekyll,gencer/jekyll,xcatliu/jekyllcn,alfredxing/jekyll,zsyed91/jekyll,stomar/jekyll,Strangehill/jekyll,Strangehill/jekyll,derekgottlieb/jekyll,derekgottlieb/jekyll,x-way/jekyll,princeofdarkness76/jekyll,rlugojr/jekyll,zsyed91/jekyll,bsmr-ruby/jekyll,mrb/jekyll,pmarsceill/jekyll,chrisfinazzo/jekyll,alex-kovac/jekyll,rlugojr/jekyll,tomjohnson1492/jekyll,alex-kovac/jekyll,gencer/jekyll,xiebinhqy/jklly_china,noikiy/jekyll,darwin/jekyll,ryanshaw/jekyll,jekyll/jekyll,jaybe-jekyll/jekyll,fulldecent/jekyll,pmarsceill/jekyll,bsmr-ruby/jekyll,ZDroid/jekyll,floydpraveen/jekyll,fulldecent/jekyll,fulldecent/jekyll,darwin/jekyll,nasht00/jekyll,jekyll/jekyll,Strangehill/jekyll,tomjohnson1492/jekyll,yhironaka/yhironaka.github.io,tomjohnson1492/jekyll,Strangehill/jekyll,princeofdarkness76/jekyll,zsyed91/jekyll,alfredxing/jekyll