add PartsBox plug to the README

jwr · jwr · commit 4e78adda422b · 2021-02-10T19:59:55.000+01:00
diff --git a/README.md b/README.md
@@ -6,6 +6,8 @@ This is a small library that implements an I2C (IIC, I&sup2;C, or I squared C) maste
 
 MIT. I believe in freedom, which means I believe in letting you do whatever you want with this code.
 
+If you like the code and find it useful, please take a look at PartsBox (https://partsbox.com/), my app that lets you take control of your electronic parts inventory, parts ordering/purchasing, BOM pricing, and production.
+
 # Features
 
 * Small.
