Update README.md

README.md

 Marlin 3D Printer Firmware
 ==========================
 [![Coverity Scan Build Status](https://scan.coverity.com/projects/2224/badge.svg)](https://scan.coverity.com/projects/2224)
-[![Travis Build Status](https://travis-ci.org/ErikZalm/Marlin.svg)](https://travis-ci.org/MarlinFirmware/Marlin)
+[![Travis Build Status](https://travis-ci.org/MarlinFirmware/Marlin.svg)](https://travis-ci.org/MarlinFirmware/Marlin)
 
 Marlin has a GPL license because I believe in open development.
 Please do not use this code in products (3D printers, CNC etc) that are closed source or are crippled by a patent.