basic doc

README.md

@@ -1,2 +1,14 @@
 # wifi-probe
-A visual Wi-Fi probe device based on the Raspberry Pi Pico W microcontroller and the Pimonori Pico Display Pack 2.0".
+A visual Wi-Fi probe device based on the Raspberry Pi Pico W microcontroller and the Pimonori Pico Display Pack 2.0".
+
+# Basic Usage
+## Select, scroll & pin
+- Press A to scroll up, B to scroll down.
+- Press X to pin the network the cursor is indicating.
+- Press X again to unpin the network.
+
+## Modes
+- Press Y to toggle between modes. There are currently 2 modes: interference check and rssi percentage.
+
+# Demo
+![Test of the wifi probe in the hallways of my building](https://cdn.discordapp.com/attachments/938231835488550914/1125992646012309524/IMG_8463.jpg)