Update README.md

README.md

@@ -115,7 +115,12 @@ var lex = require('letsencrypt-express').create({
 //, store: require('le-store-certbot').create({})
 //, sni: require('le-sni-auto').create({})
 
-, approveDomains: function (opts, certs, cb) {
+, approveDomains: approveDomains
+});
+```
+
+```javascript
+function approveDomains(opts, certs, cb) {
   // This is where you check your database and associated
   // email addresses with domains and agreements and such
 
@@ -132,7 +137,6 @@ var lex = require('letsencrypt-express').create({
 
   cb(null, { options: opts, certs: certs });
 }
-});
 ```