Consider adding a badge from ArduBadge

[gilmaimon]

Hi, Consider adding this badge from ArduBadge: Markdown: [![arduino-library-badge](https://www.ardu-badge.com/badge/thinger.io.svg?)](https://www.ardu-badge.com/thinger.io) It shows the latest version that is available on the Arduino IDE (and that the library is indeed in the IDE's Library Manager). Also, clicking on the badge redirects to a custom page with instructions for installing thinger.io from the IDE and from a ZIP file. I saw you have a really good and specific installations instructions yourself here. So, you might want to change the badge to redirect to that tutorial instead of ardu-badge.com. Like this: [![arduino-library-badge](https://www.ardu-badge.com/badge/thinger.io.svg?)](http://docs.thinger.io/arduino/) Hope you liked it :)