Add product image

Author: PaulZC

README.md

@@ -1,7 +1,7 @@
 SparkFun ACS37800 Power Monitor Arduino Library
 ===========================================================
 
-[![SparkX ACS37800 Power Meter (Qwiic) (SPX-17873)]()](https://www.sparkfun.com/products/17873)
+[![SparkX ACS37800 Power Meter (Qwiic) (SPX-17873)](https://cdn.sparkfun.com//assets/parts/1/7/0/6/9/17873-SparkX_Power_Meter_-_ACS37800__Qwiic_-01.jpg)](https://www.sparkfun.com/products/17873)
 
 [*SparkX ACS37800 Power Meter (Qwiic) (SPX-17873)*](https://www.sparkfun.com/products/17873)