Added download link from github to the docs.
Added download link from github to the docs.

Signed-off-by: Justin S Bayer <52982c3dac72c0fccb8555a64b45ff506a77592d@googlemail.com>
fxsjy/pybrain,chanderbgoel/pybrain,samstern/MSc-Project,ii0/pybrain,ii0/pybrain,fxsjy/pybrain,RatulGhosh/pybrain,RafaelCosman/pybrain,jlegendary/pybrain,cmorgan/pybrain,pybrain/pybrain,tmeits/pybrain,Adai0808/pybrain,comepradz/pybrain,newemailjdm/pybrain,taylorhxu/pybrain,jackru/pybrain,Ryanglambert/pybrain,fxsjy/pybrain,CVML/pybrain,styskin/pybrain,comepradz/pybrain,zygmuntz/pybrain,Adai0808/pybrain,luigift/pybrain,fxsjy/pybrain,taylorhxu/pybrain,sepehr125/pybrain,garyfeng/pybrain,yonglehou/pybrain,newemailjdm/pybrain,sepehr125/pybrain,styskin/pybrain,zygmuntz/pybrain,pybrain/pybrain,tmeits/pybrain,Neural-Network/TicTacToe,pybrain2/pybrain2,arabenjamin/pybrain,garyfeng/pybrain,luigift/pybrain,jlegendary/pybrain,jackru/pybrain,CVML/pybrain,RafaelCosman/pybrain,CVML/pybrain,RatulGhosh/pybrain,pybrain2/pybrain2,zygmuntz/pybrain,Ryanglambert/pybrain,comepradz/pybrain,yonglehou/pybrain,sepehr125/pybrain,arabenjamin/pybrain,pybrain2/pybrain2,blueburningcoder/pybrain,blueburningcoder/pybrain,cmorgan/pybrain,ii0/pybrain,styskin/pybrain,taylorhxu/pybrain,arabenjamin/pybrain,chanderbgoel/pybrain,tmeits/pybrain,yonglehou/pybrain,newemailjdm/pybrain,blueburningcoder/pybrain,garyfeng/pybrain,jlegendary/pybrain,cmorgan/pybrain,luigift/pybrain,RafaelCosman/pybrain,Ryanglambert/pybrain,Adai0808/pybrain,jackru/pybrain,zygmuntz/pybrain,Neural-Network/TicTacToe,RatulGhosh/pybrain,pybrain/pybrain,Neural-Network/TicTacToe,fxsjy/pybrain,chanderbgoel/pybrain