Suggest using M5Unified instead

Author: chipguyhere

README.md

@@ -5,7 +5,13 @@
 
 English | [中文](docs/getting_started_cn.md) | [日本語](docs/getting_started_ja.md)
 
-The M5Stack library  provides access to the built-in hardware of the M5Stack Basic and Gray controllers through the M5Stack class, referenced as `M5`, including:
+The M5Stack library provides access to the built-in hardware of the M5Stack Core (including Basic and Gray) controllers.
+
+## Recommendation
+**<span style="font-size: larger">This library is not recommended for new projects, nor for projects using M5Stack products other than _Basic_ and _Gray_.  See [M5Unified](https://github.com/M5Stack/M5Unified) and [M5GFX](https://github.com/M5Stack/M5GFX) for libraries that are more up-to-date and with support for many newer M5Stack products.</span>**
+
+## Usage
+This library's functionality is available through the M5Stack class, referenced as `M5`, including:
 - LCD display via `M5.Lcd`, a customized version of the [TFT_eSPI](https://github.com/Bodmer/TFT_eSPI) LCD library, adapted for Basic and Gray.  The display resolution is 320x240 supporting 262K colors.  Several fonts, graphics primitives, QR code rendering, and PNG/BMP/JPEG support are included.
 - Power control, including device shutoff and battery level detection via `M5.Power` and the IP5306 power management chip
 - Hardware buttons via `M5.BtnA`, `M5.BtnB`, `M5.BtnC`
@@ -21,7 +27,7 @@ Additional optional include files:
 - `M5Faces.h` for access to M5Stack Faces accessories (EOL)
 - `LoRaWan.h`
 
-<img src="https://static-cdn.m5stack.com/resource/docs/static/assets/img/product_pics/core/gray/gray_01.webp" alt="gray" width="350" height="350"><img src="https://static-cdn.m5stack.com/resource/docs/static/assets/img/product_pics/core/basic/basic_01.webp" alt="basic" width="350" height="350">
+<img src="https://static-cdn.m5stack.com/resource/docs/static/assets/img/product_pics/core/basic/basic_01.webp" alt="basic" width="350" height="350"><img src="https://static-cdn.m5stack.com/resource/docs/static/assets/img/product_pics/core/gray/gray_01.webp" alt="gray" width="350" height="350">
 
 * **Hardware documentation for [Gray v1.0 (EOL)](https://docs.m5stack.com/en/core/gray)**
 
@@ -32,7 +38,7 @@ Additional optional include files:
 *[Comparison of M5Stack controllers](https://docs.m5stack.com/en/products_selector)*
 
 ### M-BUS
-![image](docs/M-BUS.jpg)
+<img src="docs/M-BUS.jpg" width="300" />
 
 ## More Information