message: Fix AngularJS Example Typo in README.md
  The example given for `Angularjs` had a case-sensitivity typo that occurred to me while checking the library with my application.
  The correct names for the params are `projectId` and `projectKey`.
diff: @@ -8,8 +8,8 @@ angular
  .module('app')
  .factory('$exceptionHandler', function ($log) {
  var airbrake = new Notifier({
  - projectid: 1, // Airbrake project id
  - projectkey: 'FIXME' // Airbrake project API key
  + projectId: 1, // Airbrake project id
  + projectKey: 'FIXME' // Airbrake project API key
  });
  airbrake.addFilter(function (notice) {
  