Added another compatible device (#37)
Added another compatible device (#37)

Not sure if you're still adding to this list, but one of the cheaper chest heart rate trackers on Amazon, the [Magene H64](https://www.amazon.com/dp/B0B1CV2S6V) ($20, non-referral link) works with this software. If you're not still adding or aren't listing devices like this, no worries, feel free to close the PR
jlennox/HeartRate