Added option to set custom greetings. Moved HomeHeader to separate file. Cleaned up README file

utils/ErrorResponse.js

@@ -1,8 +1,8 @@
 class ErrorResponse extends Error {
   constructor(message, statusCode) {
     super(message);
-    this.statusCode = statusCode
+    this.statusCode = statusCode;
   }
 }
 
-module.exports = ErrorResponse;
+module.exports = ErrorResponse;