2 files changed, 7 insertions, 0 deletions

diff --git a/src/HTML5/Serializer/HTML5Entities.php b/src/HTML5/Serializer/HTML5Entities.php
index a65a6e7..5717002 100644
--- a/src/HTML5/Serializer/HTML5Entities.php
+++ b/src/HTML5/Serializer/HTML5Entities.php
@@ -10,6 +10,10 @@
  */
 namespace HTML5\Serializer;
 
+/**
+ * A mapping of entities to their html5 representation. Used for older PHP
+ * versions that don't have the mapping.
+ */
 class HTML5Entities {
   public static $map = array (
     '	' => '	',
diff --git a/src/HTML5/Serializer/OutputRules.php b/src/HTML5/Serializer/OutputRules.php
index 5ec06f6..c40858c 100644
--- a/src/HTML5/Serializer/OutputRules.php
+++ b/src/HTML5/Serializer/OutputRules.php
@@ -10,6 +10,9 @@ namespace HTML5\Serializer;
 
 use \HTML5\Elements;
 
+/**
+ * Generate the output html5 based on element rules.
+ */
 class OutputRules implements \HTML5\Serializer\RulesInterface {
 
   const IM_IN_HTML = 1;