Setup two more PicoW's. Updated README with additional lines for setup via REPL in Thonny.

README.md

@@ -7,4 +7,15 @@
 - Measure & Report CPU Temp
 
 ### Use
+- Install packages ...
+```
+import network
+wlan = network.WLAN(network.STA_IF)
+wlan.active(True)
+wlan.connect("Wi-Fi AP", "PASSWORD")
+
+import upip
+upip.install('umqtt.simple')
+upip.install('umqtt.robust')
+```
 - Upload files onto PICO, adjust params (such as Wi-Fi Credentials // pins // etc ), deploy to your PICO W