Fixed code examples in components/dom_crawler

wouterj · wouterj · commit 7998afa16471 · 2012-07-05T11:07:00.000+02:00
diff --git a/components/dom_crawler.rst b/components/dom_crawler.rst
@@ -28,6 +28,7 @@ traverse easily::
     use Symfony\Component\DomCrawler\Crawler;
 
     $html = <<<'HTML'
+    <!DOCTYPE html>
     <html>
         <body>
             <p class="message">Hello World!</p>
