Update TSL2561.md

Raw image URL to avoid CORB trouble

Author: sfromis

docs/TSL2561.md

@@ -41,6 +41,6 @@ Sensor sends a  `tele/%topic%/SENSOR` JSON response:
 
 ## Breakout Boards
 <img src="https://github.com/arendst/arendst.github.io/blob/master/media/wemos/tsl2561-adafruit-lux-sensor.jpg?raw=true" align="right" width="225" />
-<img src="https://github.com/arendst/arendst.github.io/blob/master/media/wemos/tsl2561-lux-sensor-front.jpeg" align="right" width="225" />
+<img src="https://github.com/arendst/arendst.github.io/blob/master/media/wemos/tsl2561-lux-sensor-front.jpeg?raw=true" align="right" width="225" />
 <img src="https://github.com/arendst/arendst.github.io/blob/master/media/wemos/tsl2561-lux-sensor-back.jpg?raw=true" align="right" width="225" />