Update readme about license_finder installation
Update readme about license_finder installation

Resolves #104

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