fixed link to library manager

Author: Arnd

.github/README.md

@@ -1,6 +1,6 @@
 <img src="../images/horizontal_narrow.png" alt="INA" align="right" height="40px">
 
-[![License: GPL v3](https://zanduino.github.io/Badges/GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0) [![Build](https://github.com/Zanduino/INA/workflows/Build/badge.svg)](https://github.com/Zanduino/INA/actions?query=workflow%3ABuild) [![Format](https://github.com/Zanduino/INA/workflows/Format/badge.svg)](https://github.com/Zanduino/INA/actions?query=workflow%3AFormat) [![Wiki](https://zanduino.github.io/Badges/Documentation-Badge.svg)](https://github.com/Zanduino/INA/wiki) [![Doxygen](https://github.com/Zanduino/INA/workflows/Doxygen/badge.svg)](https://Zanduino.github.io/INA/html/index.html) [![arduino-library-badge](https://www.ardu-badge.com/badge/INA2XX.svg?)](https://www.ardu-badge.com/INA2XX)
+[![License: GPL v3](https://zanduino.github.io/Badges/GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0) [![Build](https://github.com/Zanduino/INA/workflows/Build/badge.svg)](https://github.com/Zanduino/INA/actions?query=workflow%3ABuild) [![Format](https://github.com/Zanduino/INA/workflows/Format/badge.svg)](https://github.com/Zanduino/INA/actions?query=workflow%3AFormat) [![Wiki](https://zanduino.github.io/Badges/Documentation-Badge.svg)](https://github.com/Zanduino/INA/wiki) [![Doxygen](https://github.com/Zanduino/INA/workflows/Doxygen/badge.svg)](https://Zanduino.github.io/INA/html/index.html) [![arduino-library-badge](https://www.ardu-badge.com/badge/INA2xx.svg?)](https://www.ardu-badge.com/INA2xx)
 # INA2*xx* Devices<br>
 
 _Arduino_ library to access multiple INA2xx High-Side/Low-Side Bi-Directional I2C Current and Power Monitors at the same time.  Details of the library methods and example programs are to be found [at the INA wiki pages]