--- | Merge a Configuration with an OptionalConfiguration. This is more
--- or less the Monoid instance for OptionalConfiguration, but since
--- the two types are different, we have to repeat ourselves.
+-- | Merge a 'Configuration' with an 'OptionalConfiguration'. This is
+-- more or less the Monoid instance for 'OptionalConfiguration', but
+-- since the two types are different, we have to repeat ourselves.