Let's say /assets/e4 is the project directory .
Checkout this folder as /sources/RELM
Copy the files in ./ConfigSample to and modify as required
Adding RELM with git subtree:
mkdir -p assets/e4/sources
git remote add subtree-RELM git@github.com:ElixirElm/RELM.git
git fetch subtree-RELM
git subtree add --prefix=assets/e4/sources/RELM subtree-RELM master
cp assets/e4/sources/RELM/ConfigSample/* assets/e4/
Contributing with gitsubtree:
git subtree push --prefix=assets/e4/sources/RELM/ subtree-RELM bugfix