docs(): Fix a couple of typos in the documentation

Author: krisajenkins

docs/content/guide/directive.ngdoc

@@ -351,7 +351,7 @@ compiler}. The attributes are:
   * `controller` - Controller constructor function. The controller is instantiated before the
     pre-linking phase and it is shared with other directives if they request it by name (see
     `require` attribute). This allows the directives to communicate with each other and augment
-    each other behavior. The controller is injectable with the following locals:
+    each other's behavior. The controller is injectable with the following locals:
 
     * `$scope` - Current scope associated with the element
     * `$element` - Current element

src/Angular.js

@@ -832,7 +832,7 @@ function encodeUriQuery(val, pctEncodeSpaces) {
  * @name ng.directive:ngApp
  *
  * @element ANY
- * @param {angular.Module} ngApp on optional application
+ * @param {angular.Module} ngApp an optional application
  *   {@link angular.module module} name to load.
  *
  * @description

src/loader.js

@@ -30,7 +30,7 @@ function setupModuleLoader(window) {
      *
      * # Module
      *
-     * A module is a collocation of services, directives, filters, and configure information. Module
+     * A module is a collocation of services, directives, filters, and configuration information. Module
      * is used to configure the {@link AUTO.$injector $injector}.
      *
      * <pre>
@@ -60,7 +60,7 @@ function setupModuleLoader(window) {
      * @param {!string} name The name of the module to create or retrieve.
      * @param {Array.<string>=} requires If specified then new module is being created. If unspecified then the
      *        the module is being retrieved for further configuration.
-     * @param {Function} configFn Option configuration function for the module. Same as
+     * @param {Function} configFn Optional configuration function for the module. Same as
      *        {@link angular.Module#config Module#config()}.
      * @returns {module} new module with the {@link angular.Module} api.
      */