1 files changed, 1 insertions, 0 deletions
diff --git a/index.html b/index.html
index fba5d7e..c8db17c 100644
--- a/index.html
+++ b/index.html
@@ -1,3 +1,4 @@
+<!doctype html>
 <html>
     <head>
         <meta charset="utf-8">