Updating docs with mentions of the new Regression layer and Sigmoid layer
Updating docs with mentions of the new Regression layer and Sigmoid layer

karpathy/convnetjs,zhangweiabc/convnetjs,mcanthony/convnetjs,adrianseeley/convnetjs,GritBear/convnetjs,hardmaru/convnetjs,bittlingmayer/convnetjs,garbados/convnetjs,bittlingmayer/convnetjs,GitBubble/convnetjs,ArkeologeN/convnetjs,electricessence/convnetjs,vallettea/convnetjs,githubtest20141111/convnetjs-,bluekidds/convnetjs,yxyang/convnetjs,hiwonjoon/convnetjs,dhruvparamhans/convnetjs,dhruvparamhans/convnetjs,vallettea/convnetjs,Cadene/convnetjs,tbryant/convnetjs,elkingtonmcb/convnetjs,FighterLYL/convnetjs,zptec/convnetjs,redreamality/convnetjs,zptec/convnetjs,electricessence/convnetjs,thomasfoster96/convnetjs,yoskeoka/convnetjs-ts,hardmaru/convnetjs,FighterLYL/convnetjs,mcanthony/convnetjs,jz3707/convnetjs,g3n1uss/convnetjs,Wen777/convnetjs,elkingtonmcb/convnetjs,ArkeologeN/convnetjs,jz3707/convnetjs,karpathy/convnetjs,zhangweiabc/convnetjs,jjviscomi/convnetjs,Cadene/convnetjs,jjviscomi/convnetjs,xebitstudios/convnetjs,g3n1uss/convnetjs,liuweiwuxie/convnetjs,shushanbj/convnetjs,redreamality/convnetjs,GritBear/convnetjs,electricessence/convnetjs,4rzael/convnetjs,yxyang/convnetjs,garbados/convnetjs,liuweiwuxie/convnetjs,GitBubble/convnetjs,tbryant/convnetjs,shushanbj/convnetjs,bluekidds/convnetjs,Jai-Chaudhary/convnetjs,xebitstudios/convnetjs,4rzael/convnetjs,adrianseeley/convnetjs,hiwonjoon/convnetjs,yoskeoka/convnetjs-ts