docs($location): improve style

Closes #13072

Author: bertyhell

src/ng/location.js

@@ -574,9 +574,9 @@ var locationPrototype = {
    * @description
    * This method is getter / setter.
    *
-   * Return hash fragment when called without any parameter.
+   * Returns the hash fragment when called without any parameters.
    *
-   * Change hash fragment when called with parameter and return `$location`.
+   * Changes the hash fragment when called with a parameter and returns `$location`.
    *
    *
    * ```js
@@ -597,8 +597,8 @@ var locationPrototype = {
    * @name $location#replace
    *
    * @description
-   * If called, all changes to $location during current `$digest` will be replacing current history
-   * record, instead of adding new one.
+   * If called, all changes to $location during the current `$digest` will replace the current history
+   * record, instead of adding a new one.
    */
   replace: function() {
     this.$$replace = true;