Update readme.md

guide/esp_dht22_emoncms/readme.md

@@ -4,6 +4,9 @@ An example made using the [Adafruit Huzzah](https://www.adafruit.com/product/247
 
 This code example, when loaded onto the ESP will continuously upload temperature and humidity data onto [emoncms.org](https://emoncms.org)
 
-CP2102 USB to UART programming module was used as power supply and to program. 
+[CP2102 USB to UART adapter](https://shop.openenergymonitor.com/programmers) was used as power supply and to program the ESP. 
+PlatformIO or Arduino IDE can be used to compile and upload code. See [PlatformIO compile and upload guide](https://guide.openenergymonitor.org/technical/compiling)
 
 ![image](fritzESP.png)
+
+Thanks to @myrddinmuse for puting together this example.