add demo graphic

James Dumay · James Dumay · commit 3d7e758923c4 · 2018-12-15T17:18:05.000+11:00
diff --git a/README.md b/README.md
@@ -40,4 +40,6 @@ Results the following printed to the serial port:
 Temp22.00
 ```
 
+# Output
+
 ![Demo](https://raw.githubusercontent.com/i386/plotplotplot/master/demo.gif)

-Original file line number
+Diff line change
 Temp22.00
 ```
 +# Output
++
 ![Demo](https://raw.githubusercontent.com/i386/plotplotplot/master/demo.gif)