sitkin/config.json contains a few configuration options:
ignore is a list of file globs relative to the top level directory to
ignore when generating the result site.
nohash is a list of file globs for asset files that should not be
renamed with a hash of their contents.
filesets is a list of the file sets (see below).
The sitkin directory contains templates that are used to render other files.
default.tmpl is the default template that renders every page.
posts.tmpl, in this example, is the template for the posts directory.
When rendering posts (in this example), the template set contains
default.tmpl and posts.tmpl. When rendering other pages, the template
set contains only default.tmpl.
The posts directory is a file set of Markdown files. Sitkin knows that posts
should be rendered (rather than just copied directly) because posts is
listed as a fileset in config.json.
Each markdown file can include metadata, which is arbitrary JSON text
accessible from the template, at the beginning of the file delimited by an
HTML comment (<!-- and -->).
The gen directory contains the generated files. (It should be gitignored.)
Other directories, like assets in this example, are directly copied as-is.
Templates like index.tmpl and markdown files are rendered to html files.