updated API description

shiro-faces/src/main/java/de/muehlencord/shirofaces/tags/unsupported/PrincipalTag.java

@@ -22,23 +22,30 @@ import javax.faces.view.facelets.FaceletContext;
 import javax.faces.view.facelets.TagConfig;
 
 /**
- * <p>
+ * <div>
  * Tag used to print out the String value of a user's default principal, or a
- * specific principal as specified by the tag's attributes.</p>
+ * specific principal as specified by the tag's attributes.
+ * </div>
  *
- * <p>
- * If no attributes are specified, the tag prints out the <tt>toString()</tt>
- * value of the user's default principal. If the <tt>type</tt> attribute is
+ * <div>
+ * If no attributes are specified, the tag prints out the <b>toString()</b>
+ * value of the user's default principal. If the <b>type</b> attribute is
  * specified, the tag looks for a principal with the given type. If the
- * <tt>property</tt> attribute is specified, the tag prints the string value of
+ * <b>property</b> attribute is specified, the tag prints the string value of
  * the specified property of the principal. If no principal is found or the user
- * is not authenticated, the tag displays nothing unless a <tt>defaultValue</tt>
- * is specified.</p>
+ * is not authenticated, the tag displays nothing unless a <b>defaultValue</b>
+ * is specified.
+ * </div>
  *
  * @author Joern Muehlencord (joern at muehlencord.de)
  */
 public class PrincipalTag extends AbstractTag {
 
+    /**
+     * creates a new principal tag
+     *
+     * @param config the configuration to use
+     */
     public PrincipalTag(TagConfig config) {
         super(config);
     }