Spelling/grammar fixes.

Author: vshih

docs/api-guide/generic-views.md

@@ -200,7 +200,7 @@ Should be mixed in with any [GenericAPIView].
 
 Provides a `.retrieve(request, *args, **kwargs)` method, that implements returning an existing model instance in a response.
 
-If an object can be retrieve this returns a `200 OK` response, with a serialized representation of the object as the body of the response.  Otherwise it will return a `404 Not Found`.
+If an object can be retrieved this returns a `200 OK` response, with a serialized representation of the object as the body of the response.  Otherwise it will return a `404 Not Found`.
 
 Should be mixed in with [SingleObjectAPIView].
 

docs/api-guide/serializers.md

@@ -353,7 +353,7 @@ The `depth` option should be set to an integer value that indicates the depth of
 
 ## Specifying which fields should be read-only 
 
-You may wish to specify multiple fields as read-only. Instead of adding each field explicitely with the `read_only=True` attribute, you may use the `read_only_fields` Meta option, like so:
+You may wish to specify multiple fields as read-only. Instead of adding each field explicitly with the `read_only=True` attribute, you may use the `read_only_fields` Meta option, like so:
 
     class AccountSerializer(serializers.ModelSerializer):
         class Meta: