• You can create a _PageStart.cshtml and a _SiteLayout.cshtml in each of the subfolders to customize them per book/chapter
• Index.markdown is the default document when no route is defined
• URLs like [text](url) are automatically resolved
• file references like [text](./filename) are automatically resolved
• #include(./filename.markdown) are automatically inserted
• comments can be done using // at the beginning of lines