updated images in readme

Author: nshadov

README.md

@@ -15,11 +15,19 @@ emulating "user activity" and preventing screen-saver from locking up desktop.
   * USB Micro-B (male) to USB Type-A (male) connector - becaue Arduino comes with micro USB port (those are commonly used to transfer data between smartphone and computer)
   * Arduino IDE (https://www.arduino.cc/en/Main/Software) - program Arduino device
 
+![arduino-micro-pro](https://raw.githubusercontent.com/nshadov/screensaver-mouse-jiggler/master/docs/img/arduino-1.jpg)
+![arduino-usb](https://raw.githubusercontent.com/nshadov/screensaver-mouse-jiggler/master/docs/img/arduino-2.jpg)
+
 ## Installation
 
 
 ## Considerations
 
+### Exposed Electronics
+
+Touching exposed electronics (arduino) with naked hands could damage it. Consider putting it in thermal insulation - this should help with ESD.
+
+![arduino-esd](https://raw.githubusercontent.com/nshadov/screensaver-mouse-jiggler/master/docs/img/arduino-3.jpg)
 
 ### Reliability