Hints for tkinfo in main

Hints

• asv-url-not-secure
  tkinfo.appdata.xml:17 - http://math-www.uni-paderborn.de/~axel/tkinfo/
  Consider using a secure (HTTPS) URL for this web link.
• asv-url-not-secure
  tkinfo.appdata.xml:18 - http://math-www.uni-paderborn.de/~axel/tkinfo/README-tkinfo-2.11.txt
  Consider using a secure (HTTPS) URL for this web link.
• asv-screenshot-media-url-not-secure
  tkinfo.appdata.xml:30 - http://math-www.uni-paderborn.de/~axel/tkinfo/tkinfo.gif
  Consider using a secure (HTTPS) URL to reference this screenshot image or video.
• asv-developer-info-missing
  tkinfo.appdata.xml -
  This component contains no `developer` element with information about its author.