title: Starting npm run start over https instead of http
body: <p>I am trying to run iiif-manifest-store over https instead of http. By default it runs in http. Is there a way I can fix this? I am using: 
      npm run start command
  to start off the server on port 3001</p>
  
  <p><a href="https://github.com/textandbytes/iiif-manifest-store" rel="nofollow noreferrer">https://github.com/textandbytes/iiif-manifest-store</a></p>