D10662: indexerconfig: Describe some functions

[Michael Heidelbach]

michaelh added a project: Baloo.

REPOSITORY
  R293 Baloo

REVISION DETAIL
  https://phabricator.kde.org/D10662

To: michaelh, #baloo
Cc: adridg, #frameworks, ashaposhnikov, michaelh, spoorun, nicolasfella, 
alexeymin