add gem source
add gem source

ComperioAG/styleguide_geologieportal,manuelroth/styleguide,manuelroth/styleguide,RolandStuder/styleguide,ComperioAG/styleguide_mont-terri,RolandStuder/styleguide,RolandStuder/styleguide,swiss/styleguide,swiss/styleguide,ComperioAG/styleguide_mont-terri,manuelroth/styleguide,ComperioAG/styleguide_geologieportal