Add documentation for assets.
Add documentation for assets.

fulldecent/jekyll,ZDroid/jekyll,x-way/jekyll,ZDroid/jekyll,gencer/jekyll,gencer/jekyll,x-way/jekyll,fulldecent/jekyll,jaybe-jekyll/jekyll,ryanshaw/jekyll,fulldecent/jekyll,jaybe-jekyll/jekyll,tomjohnson1492/jekyll,Strangehill/jekyll,tillgrallert/jekyll,darwin/jekyll,alfredxing/jekyll,tomjohnson1492/jekyll,jekyll/jekyll,gencer/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,noikiy/jekyll,Strangehill/jekyll,noikiy/jekyll,tomjohnson1492/jekyll,alex-kovac/jekyll,gencer/jekyll,rasa2011/rasa2011.github.io,alex-kovac/jekyll,alex-kovac/jekyll,Strangehill/jekyll,jaybe-jekyll/jekyll,Strangehill/jekyll,tillgrallert/jekyll,jekyll/jekyll,tillgrallert/jekyll,Strangehill/jekyll,yhironaka/yhironaka.github.io,alfredxing/jekyll,darwin/jekyll,xiebinhqy/jklly_china,tillgrallert/jekyll,darwin/jekyll,x-way/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll,ryanshaw/jekyll,alfredxing/jekyll,getandpost/jekyll.github.io,rlugojr/jekyll,alex-kovac/jekyll,getandpost/jekyll.github.io,noikiy/jekyll,rasa2011/rasa2011.github.io,jekyll/jekyll,x-way/jekyll,xiebinhqy/jklly_china,ZDroid/jekyll,getandpost/jekyll.github.io,darwin/jekyll,chrisfinazzo/jekyll,tillgrallert/jekyll,rlugojr/jekyll,alfredxing/jekyll,tomjohnson1492/jekyll,ryanshaw/jekyll,alex-kovac/jekyll,xiebinhqy/jklly_china,rlugojr/jekyll,gencer/jekyll,xiebinhqy/jklly_china,noikiy/jekyll,tomjohnson1492/jekyll,rasa2011/rasa2011.github.io,chrisfinazzo/jekyll,rlugojr/jekyll,jaybe-jekyll/jekyll