add overview page

docs/overview.md

@@ -1 +1,44 @@
 # Overview
+
+If you like this project consider buying me a pizza 🍕 <a href="https://paypal.me/joBr99" target="_blank"><img src="https://img.shields.io/static/v1?logo=paypal&label=&message=donate&color=slategrey"></a>
+
+[![hacs_badge](https://img.shields.io/badge/HACS-Default-41BDF5.svg)](https://github.com/hacs/integration)
+![hacs validation](https://github.com/joBr99/nspanel-lovelace-ui/actions/workflows/hacs-validation.yaml/badge.svg)
+[![Man Hours](https://img.shields.io/endpoint?url=https%3A%2F%2Fmh.jessemillar.com%2Fhours%3Frepo%3Dhttps%3A%2F%2Fgithub.com%2FjoBr99%2Fnspanel-lovelace-ui.git)](https://jessemillar.com/r/man-hours)
+
+NsPanel Lovelace UI is a Firmware for the nextion screen inside of NSPanel in the Design of [HomeAssistant](https://www.home-assistant.io/)'s Lovelace UI Design.
+
+**EU Model and US Model supported (in portrait and landscape orientation)**
+
+Content of the screen is controlled by a AppDaemon Python Script installed on your HomeAssistant Instance.
+
+Or an TypeScript on your ioBroker Instance in case you are an ioBroker User.
+
+NsPanel needs to be flashed with Tasmota (or upcoming with ESPHome)
+
+![nspanel-rl](img/nspanel-rl.png)
+
+## Features
+
+- Entities Page
+- Grid Page
+- Detail Pages for Lights (Brightness, Temperature and Color of the Light) and for Covers (Position)
+- Thermostat Page 
+- Media Player Card
+- Alarm Control Card
+- Screensaver Page with Time, Date and Weather Information
+- Card with QrCode to display WiFi Information
+- Localization possible (currently 38 languages)
+
+- **Everything is dynamically configurable by a yaml config, no need to code or touch Nextion Editor**
+
+It works with [Tasmota](https://tasmota.github.io/docs/) and MQTT. 
+To control the panel and update it with content from HomeAssistant there is an [AppDaemon](https://github.com/AppDaemon/appdaemon) App.
+
+See the following picture to get an idea of the look of this firmware for NSPanel.
+
+![screens](img/screens.png)
+
+Some (not all) screenshots from the US Portrait Version:
+
+![screens-us-p](img/screens-us-p.png)