Merge pull request #79 from remedix/patch-1

Update Image.php to include width and height

Author: timoisik

src/Nodes/Image.php

@@ -31,6 +31,8 @@ public function addAttributes()
             'src' => [],
             'alt' => [],
             'title' => [],
+            'width' => [],
+            'height' => [],
         ];
     }