Update README.md

Author: loricrotser

README.md

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 # SparkFun Optical Tracking Odometry Sensor
 ========================================
 
-[![SparkFun Optical Tracking Odometry Sensor](https://cdn.sparkfun.com/r/400-400/assets/parts/2/5/2/0/9/SEN-24904-Optical-Tracking-Odometry-Sensor-Feature.jpg)](https://www.sparkfun.com/products/24904)
+[![SparkFun Optical Tracking Odometry Sensor](https://cdn.sparkfun.com/assets/parts/2/5/2/0/9/SEN-24904-Optical-Tracking-Odometry-Sensor-Feature.jpg)](https://www.sparkfun.com/products/24904)
 
 [*SparkFun Optical Tracking Odometry Sensor [SEN-24904]*](https://www.sparkfun.com/products/24904)