MongoDB Documentation, Release 3.0.4 • As it makes sense, use the .. code-block:: [language] form to insert literal blocks into the text. While the double colon, :: , is functional, the .. code-block:: [language] form makes the source easier to read and understand. • For all mentions of referenced types (i.e. commands, operators, expressions, functions, statuses, etc.) use the reference types to ensure uniform formatting and cross-referencing. 933 13.5. Contribute to the Documentation