Update README to reflect that config file is optional
Update README to reflect that config file is optional

alexderz/LicenseFinder,bdshroyer/LicenseFinder,alexderz/LicenseFinder,LukeWinikates/LicenseFinder,joemoore/LicenseFinder,chef/LicenseFinder,bspeck/LicenseFinder,LukeWinikates/LicenseFinder,phusion/LicenseFinder,phusion/LicenseFinder,pivotal/LicenseFinder,JasonMSwrve/LicenseFinder,alexderz/LicenseFinder,sschuberth/LicenseFinder,pivotal/LicenseFinder,bdshroyer/LicenseFinder,pivotal/LicenseFinder,joemoore/LicenseFinder,tinfoil/LicenseFinder,LukeWinikates/LicenseFinder,alexderz/LicenseFinder,pivotal/LicenseFinder,pivotal/LicenseFinder,JasonMSwrve/LicenseFinder,LukeWinikates/LicenseFinder,sschuberth/LicenseFinder,bspeck/LicenseFinder,JasonMSwrve/LicenseFinder,joemoore/LicenseFinder,sschuberth/LicenseFinder,phusion/LicenseFinder,chef/LicenseFinder,joemoore/LicenseFinder,bspeck/LicenseFinder,bspeck/LicenseFinder,tinfoil/LicenseFinder,bdshroyer/LicenseFinder,sschuberth/LicenseFinder,LukeWinikates/LicenseFinder,tinfoil/LicenseFinder,joemoore/LicenseFinder,SimantovYousoufov/LicenseFinder,JasonMSwrve/LicenseFinder,tinfoil/LicenseFinder,bdshroyer/LicenseFinder,pivotal/LicenseFinder,SimantovYousoufov/LicenseFinder,tinfoil/LicenseFinder,sschuberth/LicenseFinder,SimantovYousoufov/LicenseFinder,JasonMSwrve/LicenseFinder,chef/LicenseFinder,alexderz/LicenseFinder,phusion/LicenseFinder,bdshroyer/LicenseFinder,SimantovYousoufov/LicenseFinder,phusion/LicenseFinder,SimantovYousoufov/LicenseFinder,bspeck/LicenseFinder,pivotal/LicenseFinder,chef/LicenseFinder