[163] add setup script & make command to build splash site dev env
Closes #163 (closed)
cc @margot
now, this behavior works:
GIVEN a freshly downloaded repo
- WHEN a dev runs
make splash.setup
- THEN the system will build the splash site docker image and install its node dependency inside the container
- NOW WHEN a dev runs
make splash.dev
the splash site will "just work"