Updates the publicServerURL option [ci skip]

Author: flovilmart

README.md

@@ -198,7 +198,8 @@ var server = ParseServer({
   verifyUserEmails: true,
   // The public URL of your app.
   // This will appear in the link that is used to verify email addresses and reset passwords.
-  publicServerURL: 'https://example.com',
+  // Set the mount path as it is in serverURL
+  publicServerURL: 'https://example.com/parse',
   // Your apps name. This will appear in the subject and body of the emails that are sent.
   appName: 'Parse App',
   // The email adapter