Updating README

dhrrgn · dhrrgn · commit c2e346328be7 · 2014-05-05T14:06:22.000-04:00
diff --git a/README.md b/README.md
@@ -18,7 +18,11 @@ entries (the limit), the sitemap becomes a "map of maps" (i.e. nested sitemaps).
 
 ## Requirements
 
-* PHP 5.4
+* PHP >= 5.4 (including 5.6beta1)
+
+**or**
+
+* HHVM >= 3.0.0
 
 ## Installation
 
