[#18] Add `npm install -g grunt-cli` to README
[#18] Add `npm install -g grunt-cli` to README

aziegler/boilerplate,cdwuestner/capstone,whitef0x0/Necromunda,blipjoy/boilerplate,philipcressler/personal-game,melonjs/boilerplate,melonjs/boilerplate,philipcressler/personal-game,whitef0x0/Necromunda,blipjoy/boilerplate,aziegler/boilerplate,cdwuestner/capstone,aziegler/ggj16Lille,aziegler/ggj16Lille