Update README.md

README.md

@@ -40,16 +40,23 @@ The module and class sections need to remain as above, other sections should be
 | start_period | Yes        | today            |
 
 You can have multiple blocks with different time periods (`hour` setting) or starting points (`start_period` setting) as needed. It will work with whole hour or half hour blocks in the `hour` setting.
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 `region` is the region letter from the end of `E-1R-AGILE-18-02-21-H` which can be found on the [Octopus Energy developer dashboard](https://octopus.energy/dashboard/developer/) webpage in the Unit Rates section for your account.
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 `start_period` is optional, it can be set to either `now` or `today`, and will default to `now`
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 `now` and `today` give subtly different results. `now` is reevaluated ever time the callback is run (once every 30 minutes), and `today` uses a start time of 00:00:00 with today's date.
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 This means that using `today` you will get the absolute cheapest block for today, even if that is in the past, and using `now` will get the cheapest block for the remainder of the day. `today` may be of more use with automated triggers, and `now` may be of use when you are wanting to display the cheapest time on a Lovelace UI card and use that information to turn on devices which cannot be automated, by hand.
 
 This may be best illustrated with a couple of pictures:
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 ![State information with now start period](https://github.com/badguy99/octoblock/blob/master/StartTimeNow.PNG)
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 Using `now` start_period this has turned on and off a few times within the day as it is reevaluated as the day goes on
 
 ![State information with today start period](https://github.com/badguy99/octoblock/blob/master/StartTimeToday.PNG)
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 Using `today` start_period this has only turned on once during the day
 
 ### Home Assistant Automation