update installation doc
update installation doc

tanmaykm/JuliaBox,mr-justin/JuliaBox,JuliaLang/JuliaBox,tanmaykm/JuliaBox,mdpradeep/JuliaBox,EricForgy/JuliaBox,JuliaLang/JuliaBox,mr-justin/JuliaBox,mdpradeep/JuliaBox,gsd-ufal/Juliabox,gsd-ufal/Juliabox,mr-justin/JuliaBox,JuliaLang/JuliaBox,tanmaykm/JuliaBox,gsd-ufal/Juliabox,EricForgy/JuliaBox,EricForgy/JuliaBox,EricForgy/JuliaBox,mdpradeep/JuliaBox,gsd-ufal/Juliabox,tanmaykm/JuliaBox,mr-justin/JuliaBox,JuliaLang/JuliaBox,mdpradeep/JuliaBox