docs($parse): fix typo in parse.js
docs($parse): fix typo in parse.js

Propogate -> Propagate

gkalpak/angular.js,mgol/angular.js,mgol/angular.js,angular/angular.js,mgol/angular.js,angular/angular.js,angular/angular.js,gkalpak/angular.js,mosoft521/angular.js,mosoft521/angular.js,mgol/angular.js,gkalpak/angular.js,mosoft521/angular.js,gkalpak/angular.js,angular/angular.js,mosoft521/angular.js