collection sandbox;
see live examples @ planetjekyll.github.io/sandbox-collections »
Ex. 4 Try to loop over documents (from a collection) using a hash table in a datafile e.g. site.data.docs
docs.yml:
- title: Welcome
path: _docs/part1/01_index.md
- title: Quick-start guide
path _docs/part1/02_quickstart.md