Fix typo: These => This

ifdattic · ifdattic · commit cd1dfa4f6173 · 2015-01-30T09:32:13.000+02:00
| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |
diff --git a/components/http_foundation/introduction.rst b/components/http_foundation/introduction.rst
@@ -297,7 +297,7 @@ code, and an array of HTTP headers::
         array('content-type' => 'text/html')
     );
 
-These information can also be manipulated after the Response object creation::
+This information can also be manipulated after the Response object creation::
 
     $response->setContent('Hello World');
 
