README.md: Use 3.3V consistently
README.md: Use 3.3V consistently

mattvenn/Arduino,tannewt/Arduino,Cloudino/Arduino,koltegirish/Arduino,ogahara/Arduino,NeuralSpaz/Arduino,EmuxEvans/Arduino,sanyaade-iot/Arduino-1,paulo-raca/ESP8266-Arduino,Cloudino/Arduino,myrtleTree33/Arduino,EmuxEvans/Arduino,paulo-raca/ESP8266-Arduino,spapadim/Arduino,NeuralSpaz/Arduino,leftbrainstrain/Arduino-ESP8266,leftbrainstrain/Arduino-ESP8266,radut/Arduino,nkolban/Arduino,sanyaade-iot/Arduino-1,smily77/Arduino,danielchalef/Arduino,gonium/Arduino,sanyaade-iot/Arduino-1,eeijcea/Arduino-1,paulo-raca/ESP8266-Arduino,ssvs111/Arduino,noahchense/Arduino-1,ogahara/Arduino,leftbrainstrain/Arduino-ESP8266,wdoganowski/Arduino,ogahara/Arduino,paulo-raca/ESP8266-Arduino,weera00/Arduino,mangelajo/Arduino,spapadim/Arduino,eeijcea/Arduino-1,paulmand3l/Arduino,wdoganowski/Arduino,wdoganowski/Arduino,Cloudino/Cloudino-Arduino-IDE,drpjk/Arduino,tannewt/Arduino,wdoganowski/Arduino,Cloudino/Cloudino-Arduino-IDE,raimohanska/Arduino,tannewt/Arduino,jomolinare/Arduino,spapadim/Arduino,weera00/Arduino,Cloudino/Arduino,ssvs111/Arduino,shiitakeo/Arduino,mangelajo/Arduino,shiitakeo/Arduino,myrtleTree33/Arduino,jomolinare/Arduino,mangelajo/Arduino,jomolinare/Arduino,weera00/Arduino,aichi/Arduino-2,danielchalef/Arduino,koltegirish/Arduino,Cloudino/Cloudino-Arduino-IDE,mateuszdw/Arduino,sanyaade-iot/Arduino-1,ssvs111/Arduino,drpjk/Arduino,gonium/Arduino,aichi/Arduino-2,aichi/Arduino-2,tannewt/Arduino,EmuxEvans/Arduino,Cloudino/Arduino,radut/Arduino,Cloudino/Cloudino-Arduino-IDE,noahchense/Arduino-1,radut/Arduino,mattvenn/Arduino,sanyaade-iot/Arduino-1,raimohanska/Arduino,shiitakeo/Arduino,weera00/Arduino,mattvenn/Arduino,ssvs111/Arduino,nkolban/Arduino,shiitakeo/Arduino,paulo-raca/ESP8266-Arduino,zenmanenergy/Arduino,gonium/Arduino,myrtleTree33/Arduino,tannewt/Arduino,aichi/Arduino-2,mangelajo/Arduino,mangelajo/Arduino,leftbrainstrain/Arduino-ESP8266,danielchalef/Arduino,spapadim/Arduino,radut/Arduino,noahchense/Arduino-1,mattvenn/Arduino,mateuszdw/Arduino,mateuszdw/Arduino,Cloudino/Cloudino-Arduino-IDE,smily77/Arduino,nkolban/Arduino,mattvenn/Arduino,NeuralSpaz/Arduino,noahchense/Arduino-1,Cloudino/Arduino,zenmanenergy/Arduino,nkolban/Arduino,NeuralSpaz/Arduino,paulmand3l/Arduino,koltegirish/Arduino,aichi/Arduino-2,mattvenn/Arduino,ogahara/Arduino,leftbrainstrain/Arduino-ESP8266,mateuszdw/Arduino,ogahara/Arduino,drpjk/Arduino,EmuxEvans/Arduino,aichi/Arduino-2,myrtleTree33/Arduino,wdoganowski/Arduino,raimohanska/Arduino,nkolban/Arduino,wdoganowski/Arduino,paulmand3l/Arduino,myrtleTree33/Arduino,paulmand3l/Arduino,aichi/Arduino-2,eeijcea/Arduino-1,jomolinare/Arduino,mattvenn/Arduino,zenmanenergy/Arduino,smily77/Arduino,shiitakeo/Arduino,myrtleTree33/Arduino,mangelajo/Arduino,ogahara/Arduino,drpjk/Arduino,jomolinare/Arduino,nkolban/Arduino,radut/Arduino,smily77/Arduino,zenmanenergy/Arduino,zenmanenergy/Arduino,ssvs111/Arduino,noahchense/Arduino-1,EmuxEvans/Arduino,myrtleTree33/Arduino,spapadim/Arduino,danielchalef/Arduino,leftbrainstrain/Arduino-ESP8266,mangelajo/Arduino,ogahara/Arduino,eeijcea/Arduino-1,koltegirish/Arduino,shiitakeo/Arduino,koltegirish/Arduino,raimohanska/Arduino,zenmanenergy/Arduino,jomolinare/Arduino,tannewt/Arduino,Cloudino/Cloudino-Arduino-IDE,ssvs111/Arduino,wdoganowski/Arduino,weera00/Arduino,gonium/Arduino,drpjk/Arduino,NeuralSpaz/Arduino,danielchalef/Arduino,Cloudino/Arduino,NeuralSpaz/Arduino,raimohanska/Arduino,shiitakeo/Arduino,weera00/Arduino,eeijcea/Arduino-1,leftbrainstrain/Arduino-ESP8266,weera00/Arduino,raimohanska/Arduino,eeijcea/Arduino-1,koltegirish/Arduino,smily77/Arduino,paulmand3l/Arduino,koltegirish/Arduino,paulo-raca/ESP8266-Arduino,sanyaade-iot/Arduino-1,smily77/Arduino,gonium/Arduino,zenmanenergy/Arduino,noahchense/Arduino-1,spapadim/Arduino,EmuxEvans/Arduino,paulmand3l/Arduino,NeuralSpaz/Arduino,Cloudino/Cloudino-Arduino-IDE,ssvs111/Arduino,drpjk/Arduino,radut/Arduino,Cloudino/Arduino,EmuxEvans/Arduino,noahchense/Arduino-1,danielchalef/Arduino,drpjk/Arduino,tannewt/Arduino,paulmand3l/Arduino,jomolinare/Arduino,nkolban/Arduino,mateuszdw/Arduino,paulo-raca/ESP8266-Arduino,raimohanska/Arduino,gonium/Arduino,mateuszdw/Arduino,gonium/Arduino,eeijcea/Arduino-1,smily77/Arduino,mateuszdw/Arduino,radut/Arduino,sanyaade-iot/Arduino-1,danielchalef/Arduino,spapadim/Arduino