Changes

[[FILE:ruytunetanh.jpg|border|right|thumb|link=http://www.wolframalpha.com/input/?i=tanh(0.43s)+,+s%3D-10+to+10| RuyTune's [https://en.wikipedia.org/wiki/Hyperbolic_function hyperbolic tanhtangent] based Sigmoid <ref>[http://www.wolframalpha.com/input/?i=tanh(0.43s)+,+s%3D-10+to+10 tanh(0.43s) , s=-10 to 10] pawnunit plot by [https://en.wikipedia.org/wiki/Wolfram_Alpha Wolfram Alpha]</ref> ]]