fix typo

index.js

@@ -3,7 +3,7 @@ let fs = require('fs');
 let bodyParser = require('body-parser');
 let outbound;
 
-let getTemplates = require('./templates');
+let getTemplates = require('./templater');
 let errorSender = require('./errorSender');
 exports.register = function() {
   outbound = this.haraka_require('./outbound');