Updated doc about installation, to include dependencies for the viewers
Updated doc about installation, to include dependencies for the viewers

matuu/simpleai,emoron/simpleai,simpleai-team/simpleai,emoron/simpleai,iamaziz/simpleai,printedheart/simpleai,simpleai-team/simpleai,printedheart/simpleai,iamaziz/simpleai,iamaziz/simpleai,printedheart/simpleai,emoron/simpleai,matuu/simpleai,matuu/simpleai,simpleai-team/simpleai