fix DOCTYPE in html example

tomclose · tomclose · commit ebbed7309714 · 2014-01-21T18:41:56.000Z
diff --git a/_sessions/c1s1/7_more_html.md b/_sessions/c1s1/7_more_html.md
@@ -16,7 +16,7 @@ A few things to look out for
 ### HTML file layout
 
 {% highlight html %}
-<DOCTYPE! html>
+<!DOCTYPE html>
 <html>
     <head>
         <title>Page title</title>
