Update URL in GitHub description to use HTTPS

[paulmenzel]

Could you please update the URL in the GitHub description to use HTTPS? This would save one request, and protect against certain kinds of attacks.

$ curl -I http://blink1.thingm.com/
HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Feb 2018 08:07:29 GMT
Server: Apache
Vary: Cookie,Accept-Encoding
Location: https://blink1.thingm.com/
Content-Type: text/html; charset=UTF-8

[todbot]

Done. Thanks!