Revert "Push the whole generated site into the submodule"

This reverts commit ff5df62186c3e7d1b9fec08289064d8e69721f52.
Revert "Add submodule"

This reverts commit b2596e2be23f0c0f21960e2e5b18952505aa95bc.
Adding submodule (hopefully for real this time :P)