Finding, building and running
-----------------------------
-As described in :doc:`codelayout`, ``src/gromacs/`` is divided into modules,
+As described in :ref:`dev-source-layout`, ``src/gromacs/`` is divided into modules,
each corresponding to a subdirectory. If available, unit tests for that module
can be found in a ``tests/`` subdirectory under the top-level module directory.
Typically, tests for code in :file:`{file}.h` in the module is in a corresponding