message: Add ATTRIBUTION for Fira Sans and League Spartan
diff: Autocomplete.js by Algolia, Inc. ([MIT License](https://github.com/algolia/autocomplete.js/blob/master/LICENSE))
  https://github.com/algolia/autocomplete.js
  +Fira Sans by The Mozilla Foundation and Telefonica S.A. ([OFL 1.1](https://github.com/mozilla/Fira/blob/master/LICENSE))
  +https://github.com/mozilla/Fira
  +
  Free 3 of 9 font by Matthew Welch ([MIT License](http://www.squaregear.net/fonts/license.shtml))
  http://www.squaregear.net/fonts/free3of9.shtml
  @@ -19,6 +22,9 @@ https://github.com/js-cookie/js-cookie
  json-forms by Ignacio del Valle Alles ([Apache License 2.0](https://github.com/brutusin/json-forms/blob/master/LICENSE))
  https://github.com/brutusin/json-forms
  +League Spartan by Micah Rich ([OFL 1.1](https://github.com/theleagueof/league-spartan/blob/master/ofl.markdown))
  +https://www.theleagueofmoveabletype.com/league-spartan
  +
  localForage by Mozilla ([Apache License 2.0](https://github.com/localForage/localForage/blob/master/LICENSE))
  https://github.com/localForage/localForage
  @@ -43,7 +49,7 @@ https://github.com/gilbarbara/react-joyride
  react-scrollspy by makotot ([MIT License](https://github.com/makotot/react-scrollspy#license))
  https://github.com/makotot/react-scrollspy
  -Roboto font by Christian Robertson ([Apache License 2.0](https://github.com/google/roboto/blob/master/LICENSE))
  +Roboto by Christian Robertson ([Apache License 2.0](https://github.com/google/roboto/blob/master/LICENSE))
  https://github.com/google/roboto
  typesense-js by Wreally Studios ([Apache License 2.0](https://github.com/typesense/typesense-js/blob/master/LICENSE))
  