Bump to v8.8.0 (#1678)

* Bump to v8.8.0

* Update customisation.md

* Update caution.md

apps/predbat/predbat.py

@@ -32,7 +32,7 @@
 import asyncio
 import json
 
-THIS_VERSION = "v8.7.3"
+THIS_VERSION = "v8.8.0"
 
 # fmt: off
 PREDBAT_FILES = ["predbat.py", "config.py", "prediction.py", "gecloud.py","utils.py", "inverter.py", "ha.py", "download.py", "unit_test.py", "web.py", "predheat.py", "futurerate.py", "octopus.py", "solcast.py","execute.py", "plan.py", "fetch.py", "output.py", "userinterface.py"]

docs/caution.md

@@ -26,6 +26,7 @@ Things you can do to have a less complex plan include:
 - Keep calculate export during charge off
 - Set metric battery cycle to a small non-zero value e.g. 0.5
 - Ensure inverter losses are set to a representative value
+- Turn off charge_low_power mode
 
 **Avoid using balance inverters which can make register changes one or twice a minute unless you are sure this is not an issue**
 

docs/customisation.md

@@ -328,6 +328,9 @@ This setting is off by default.
 The YouTube video [low power charging and charging curve](https://youtu.be/L2vY_Vj6pQg?si=0ZiIVrDLHkeDCx7h)
 explains how the low power charging works and shows how Predbat automatically creates it.
 
+**input_number.predbat_charge_low_power_margin** Controls how many minutes before the completion time to target finishing charging, this defaults to 10
+but can be changed between 0 and 30.
+
 **switch.predbat_set_reserve_enable** (_expert_mode_) When enabled the reserve setting is used to hold the battery charge level
 once it has been reached or to protect against discharging beyond the set limit. Enabled by default.