Add notes for the scheduler setup

[AIC-BV]

&> /dev/null        // notation works
>> /dev/null 2>&1   // notation doesn't work

Thanks @mjauvin

[AIC-BV]

BOTH work.
Hosting provider replied, they made a change in the permissions, so I guess both work but there was a wrong setup on their end.
They also updated my php path to the correct path

[AIC-BV]

Perhaps better like the latest commit?

[LukeTowers]

@bennothommo can you fix the linter?