Update README with new battery thresholds feature

[shadeyg56]

Apologies for the mess in the last attempt I made lol. The rebase went horribly wrong.

Added a new section for the battery thresholds as discussed in #637

[PurpleWazard]

Some thing you will want to add is the stop charge threshold can not be below 65 ( at least with thinkpad_acpi ) I've had errors having it lower than 65

Edit: I'll try this test again just to make sure

[shadeyg56]

the stop charge threshold can not be below 65 ( at least with thinkpad_acpi )

Hm, I can't find any documentation on this, so maybe this needs to be explored further?
Would you mind sharing the errors you get?

[PurpleWazard]

I started building a test however I won't be able to finish it until tonight I'll reply back with results

[PurpleWazard]

So it seems my test is working without issue so I'm going to do some investigating

[AdnanHodzic]

Maybe it would also be a good idea to first merge #645 ?

[shadeyg56]

Agreed.

[AdnanHodzic]

#645 merged, added a few comments, nothing major other then that LGTM!

Let's wait for @PurpleWazard to finish with:

So it seems my test is working without issue so I'm going to do some investigating

and if he doesn't have any additional comments we're ready to merge.

[PurpleWazard]

It all looks good to me @AdnanHodzic suggested that we clarify that --live doesn't call the battery functions.
Is was because I had having issues when I ran --live with the battery functions however since I've rewritten the battery scripts I tested it with --live and I haven't had an issue.

I can add that change before or after the new release if needed

[AdnanHodzic]

@PurpleWazard I would rather have it before and hence part of 2.2.0 release.

[PurpleWazard]

It is done

[AdnanHodzic]

Removed this comment because this is now addressed with merge of #646

Would also be good to include #645 (comment). Maybe as a last line for this section to say something like: "Please note: only --monitor and --stats have battery threshold function"

Or maybe it could be omitted, my only concern is that folks will ask it as a question. Alternatively it could be added as a comment for config file as part of battery threshold?

@shadeyg56 then let's add those 2 links I suggested and it's ready to merge.

[AdnanHodzic]

LGTM, thank you for your contribution will make sure to make this PR as part of release notes for 2.2.0.