Short description of how to use adapter

Author: jacobhylen

content/micropython-course/course/04.digital/03.digital.md

@@ -32,6 +32,12 @@ In this exercise, we will read a button, which we will need to connect to our Na
 
 ![Button Circuit.](assets/circuitButton.png)
 
+When placing the Nano ESP32 onto the Nano Screw Terminal Adapter, pay attention to the drawing on the adapter, and line up your board with it, so that the boards USB-C® port lines up with the drawing. 
+
+Screw terminals are a great way of connecting components quickly and sturdily. Grab yourself a screwdriver of an appropriate size, then feed the wire that you want to connect to a pin through the hole on the side of the adapters screw terminal, and screw down the corresponding screw to tighten its grip on the wire. 
+
+Once the cable is stuck in there, you've made a solid connection!
+
 Open the code editor, and copy paste the following script to the `main.py` file, then click on the **"Run"** button to run it.
 
 ```python