corrected and simplified HC-SR04 breadboard, fzz and png
cleaned up wiring diagram for hc-sr04
Merge branch 'master' of https://github.com/TattedCodeMonkey/johnny-five into hc-sr04

* 'master' of https://github.com/TattedCodeMonkey/johnny-five:
  cleaned up wiring diagram for hc-sr04
  corrected and simplified HC-SR04 breadboard, fzz and png