update doc

Author: akira-dev

docs/include_related_objects.rst

@@ -13,11 +13,15 @@ Example:
 
 Request:
 
+.. sourcecode:: http
+
     GET /persons/1?include=computers HTTP/1.1
     Accept: application/vnd.api+json
 
 Response:
 
+.. sourcecode:: http
+
     HTTP/1.1 200 OK
     Content-Type: application/vnd.api+json
 
@@ -81,11 +85,15 @@ Example:
 
 Request:
 
+.. sourcecode:: http
+
     GET /persons/1?include=computers.owner HTTP/1.1
     Accept: application/vnd.api+json
 
 Response:
 
+.. sourcecode:: http
+
     HTTP/1.1 200 OK
     Content-Type: application/vnd.api+json