Problem 1: The README.md at the top of the tree links to GitHub pages, but that page has just a bare "what is Dela" landing page with no obvious further links to the actual documentation. It looks like this page needs to incorporate or link to 'docs/sidebar.md' or some equivalent, but doesn't yet.
Problem 2: A lot of the "real" detailed API documentation is GoDoc, but there's no obvious link leading to that. It looks to me like the top-level README.md, as well as docs/sidebar.md, should probably offer links to the godocs for detailed API documentation.