Update AbstractNode.php

Field accessed via magic method - IDE friendly

Author: thiagotalma

src/PHPHtmlParser/Dom/AbstractNode.php

@@ -6,6 +6,10 @@
 
 /**
  * Dom node object.
+ *
+ * @property string outerhtml
+ * @property string innerhtml
+ * @property string text
  */
 abstract class AbstractNode {