updating focus border for nav

Author: kapil.bulchandani

themes/roots-nextdatagov/assets/css/rei.css

@@ -1833,5 +1833,5 @@ div.tweet-date {
     outline: 0 none;
 }
 .nav > li > a:hover, .nav > li > a:focus {
-backgroun:none;
+background:none;
 }