Update README.md

README.md

@@ -7,16 +7,17 @@ Note: Unicode may be handled incorrectly (like the browser).
 
 It turns base64-encoded <strong>a</strong>scii data back **to** <strong>b</strong>inary.
 
-    (function () {
+```javascript
+(function () {
   "use strict";
 
-      var atob = require('atob')
+  var atob = require('atob');
-        , b64 = "SGVsbG8gV29ybGQ="
+  var b64 = "SGVsbG8gV29ybGQ=";
-        , bin = atob(b64)
+  var bin = atob(b64);
-        ;
 
   console.log(bin); // "Hello World"
-    }());
+}());
+```
 
 ### Need Unicode and Binary Support in the Browser?