make index specific to downstream project

docs/index.md

@@ -2,15 +2,31 @@
 
 ![Logo](assets/images/logo.png){align=right}
 
-## OpenDTU
+## OpenDTU-OnBattery
 
-Open Source software to talk to [Hoymiles][1]{target=_blank} solar inverters. It is an alternative to their DTUs[^1] which sync everthing into the s-Miles cloud.
+!!! note "Upstream Project"
+
+    OpenDTU-OnBattery is a fork of [OpenDTU][4] by Thomas Basler (tbnobody).
+
+Open Source software to talk to [Hoymiles][1]{target=_blank} solar inverters
+and battery peripherals. It is an alternative to Hoymiles Data Transfer Units
+(DTUs), which sync data into the s-Miles cloud.
 
 !!! note "Note"
 
-    You can only use one DTU for a specific inverter. You cannot query a inverter with two DTUs. Mixing up multiple DTUs may lead to an unexpected behavior!
+    You can only use one DTU for a specific inverter. You cannot query an
+    inverter with two DTUs. Mixing up multiple DTUs may lead to unexpected
+    behavior!
+
+## Key Features
 
-## Remarkable features
+* Dynamic Power Limiter to adjust one inverter's limit dynamically
+* Power Meter interface to read the household power consumption
+* Victron VE.Direct interface to communicate with Victron charge controllers
+* Battery interface (JK BMS, Pylontech, Victron SmartShunt) to know a battery's state
+* AC charger interface to control a Huawei AC charger
+
+## Key Features inherited from the upstream project
 
 * Read live data from inverter
 * Show inverters internal event log
@@ -26,7 +42,7 @@ Open Source software to talk to [Hoymiles][1]{target=_blank} solar inverters. It
 * Time zone support
 * Ethernet support
 * Prometheus API endpoint (/api/prometheus/metrics)
-* English, german and french web interface
+* English, German and French (partially translated) web interface
 * Displays (SSD1306, SH1106, PCD8544)
 * Status LEDs
 * Configuration management (export / import configurations)
@@ -44,18 +60,17 @@ Open Source software to talk to [Hoymiles][1]{target=_blank} solar inverters. It
 
 ## Background
 
-This project was started from [this](https://www.mikrocontroller.net/topic/525778){target=_blank} discussion (Mikrocontroller.net).
-It was the goal to replace the original Hoymiles DTU (Telemetry Gateway) with their cloud access. With a lot of reverse engineering the Hoymiles protocol was decrypted and analyzed.
+The upstream project was started from [a discussion on mikrocontroller.net](https://www.mikrocontroller.net/topic/525778){target=_blank}.
+It's goal was to replace the original Hoymiles DTU (Telemetry Gateway), which uploads data to their cloud. With a lot of reverse engineering, the Hoymiles protocol was decrypted and analyzed.
 
 ## Support
 
-For support using OpenDTU you can find us on Github or Discord:
+For support using OpenDTU-OnBattery you can find us on Github or Discord:
 
 [:material-github: Github Discussions][2]{target=_blank .md-button .md-button--primary }
 [:fontawesome-brands-discord: Discord Chat][3]{target=_blank .md-button .md-button--primary }
 
 [1]: https://www.hoymiles.com/
 [2]: https://www.github.com/helgeerbe/OpenDTU-OnBattery/discussions
 [3]: https://discord.gg/WzhxEY62mB
-
-[^1]: Data Transfer Unit
+[4]: https://github.com/tbnobody/OpenDTU