If you want to break your index.md into multiple files, use includes!

Each entry in the includes list at the top of index.md refers to a file in the includes directory, like this:

includes:
  - api/databases

Will append the content of includes/api/_databases.md to the end of index.md. Note that the (required) underscore in the filename isn't in the list entry.

When your api reaches a certain size where you cannot avoid referencing certain text blocks from previous section, then you can use partial includes.

In order to use partials. We need to modify the folder structure of slate. First we need to change index.html.md to index.html.md.erb.

Next we need create a new file which contains are text block e.g. test_partial.md.erb.

The folder structure should now look like:

source/
    index.html.md.erb
source/includes
    test_partial.md.erb

Now we want to add a partial tag in index.html.md.erb in order to reference to our repetitive text blocks. We do this with adding following line: <%= partial "includes/test_partial.md.erb" %>