This repo contains submodules!

Checkout with:
git clone --recursive https://github.com/jbandi/JavaScriptWorkshop.git

If you ommit the --recursive on the initial checkout, you can get the submodules with:
git submodule init
git submodule update

To update the repo to the latest version use:
git pull --recurse-submodules
git submodule update --recursive