docs(guide/services): clean up typos

Author: zakj

docs/content/guide/services.ngdoc

@@ -11,10 +11,10 @@ Angular services are:
 
 * Lazily instantiated – Angular only instantiates a service when an application component depends
   on it.
-* Singletons – Each component is dependent on a service gets a reference to the single instance
+* Singletons – Each component dependent on a service gets a reference to the single instance
   generated by the service factory.
 
-Angular offers several useful services (like {@link ng.$http `$http`}) but for most applications
+Angular offers several useful services (like {@link ng.$http `$http`}), but for most applications
 you'll also want to {@link services#creating-services create your own}.
 
 <div class="alert alert-info">
@@ -215,8 +215,8 @@ In the example, note that:
   {@link ng.$log `$log`} services.
 * The `routeTemplateMonitor` service depends on the built-in {@link ngRoute.$route `$route`}
   service and our custom `batchLog` service.
-* Both services use the and array notation to declare their dependencies.
-* That the order of identifiers in the array is the same as the order of argument
+* Both services use the array notation to declare their dependencies.
+* The order of identifiers in the array is the same as the order of argument
   names in the factory function.
 
 ### Registering a Service with `$provide`
@@ -234,7 +234,7 @@ angular.module('myModule', []).config(function($provide) {
 });
 ```
 
-This is technique is often used in unit tests to mock out a service's dependencies.
+This technique is often used in unit tests to mock out a service's dependencies.
 
 
 ## Unit Testing