Add 'preston-sego' to Tooling team members list

Author: NullVoxPopuli

tests/unit/controllers/teams/index-test.js

@@ -44,6 +44,7 @@ module('Unit | Controller | teams/index', function (hooks) {
       'matthew-beale',
       'edward-faulkner',
       'katie-gengler',
+      'preston-sego',
     ]);
   });