Outdated function calls in the README

[matsuli]

Hey, confused beginner here...

In the README section regarding the watchdog timer shouldn't the function calls be

ArduinoCloud.update()
ArduinoCloud.begin(...) 

instead of

ArduinoIoTCloud.update()
ArduinoIoTCloud.begin(...)

[Alexander Entinger]

Good catch, thank you! It should be fixed with #270, can you take a look?

[matsuli]

Looks correct!