Update INSTALL.MD
Update INSTALL.MD

Minor change to Google OAuth instructions
Move docker image creation instructions to FAQ, as this information is unnecessary for a basic first installation (Docker will automatically pull the base image and build from there).
JuliaLang/JuliaBox,gsd-ufal/Juliabox,gsd-ufal/Juliabox,tanmaykm/JuliaBox,tanmaykm/JuliaBox,gsd-ufal/Juliabox,JuliaLang/JuliaBox,JuliaLang/JuliaBox,gsd-ufal/Juliabox,JuliaLang/JuliaBox,tanmaykm/JuliaBox,tanmaykm/JuliaBox