index.html.erb in opal-jquery-0.4.2

- old
+ new

@@ -1,7 +1,8 @@
 <!DOCTYPE html>
 <html>
 <head>
+  <meta charset="utf-8">
 </head>
 <body>
   <%= javascript_include_tag 'jquery/jquery' %>
   <%= javascript_include_tag @server.main %>
 </body>