Documentation improvement

[turboc1208]

I admit I'm somewhat dense sometimes. But on the allinone sensor description, please add a note that any other sensors specified not be created if this is chosen. The way I read it was that allinone would create one sensor with all sensors detailed under it. I did not understand that it would exclude the individual sensors from being seen. Personally I would like it if we could see both the individual sensors and the allinone for use on a rollup page and act on the other sensors in automations.