add lib upgrade notice

docs/en/core/basic.md

@@ -24,6 +24,16 @@ M5Stack Basic is consist with two separable parts. the upside part has all kinds
 2)GPIO0, GPIO12, GPIO13, GPIO15, GPIO34, pins that related to I2S are not extended out
 3)GPIO34-39 are input-only**
 
+
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## Product Features
 
 - 5V DC power supply

docs/en/core/face_kit.md

@@ -50,6 +50,16 @@ Other than 3 functional panels, this development kit comes with more stuff like
 
 *For more information on M5Stack series development board, please check the **Gray Kit***
 
+
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## Product Features
 
 - 5V DC power supply

docs/en/core/fire.md

@@ -25,6 +25,14 @@ Supported development platforms and program languages: Arduino, Blockly language
 
 *If you ever played with ESP8266, you would realize that ESP32 is a perfect upgrade from ESP8266. In comparison, ESP32 is full-feathered with more GPIO, plenty of analog inputs and two analog outputs, multiple extra perpherials( like a spare UART ). Official development platform ESP-IDF have planted with FreeRTOS. With dual-core and real time OS you can get more organized code and much high speed processor.*
 
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## Product Features
 
 - 5V DC power supply

docs/en/core/gray.md

@@ -23,6 +23,14 @@ Supported development platforms and program languages: Arduino, Blockly language
 
 <img src="assets/img/product_pics/core/gray/gray_11.png">
 
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## Product Features
 
 - 5V DC power supply

docs/en/core/m5go.md

@@ -16,6 +16,14 @@ Every M5stack development kit can be programmed through Arduino IDE, WebIDE UIFl
 
 This M5GO kit is specifically designed for STEM education. The pack includes 1 M5GO conroller + 6 M5units + plenty of accessories. Having all those goods, together with the Blockly program platform, allows the school students to explore the engineering world , making their own IoT product and implement brilliant ideas into real life.
 
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## Product Features
 
 - 5V DC power supply

docs/en/core/m5go_lite.md

@@ -17,6 +17,15 @@
 
 All M5stack development board can be programmed through Arduino IDE, WebIDE UIFlow, Micropython, and Blockly, simplifying the development process for those requiring a joint hardware and software solution. Not only does M5stack have far-reaching IoT applications in industry, agriculture, and home, but it also empowers students to learn to code in STEM classrooms.
 
+**Notice: **
+
+The newly-produced M5Core replaces the screen with better display performance and higher viewing angle, so it has some compatibility problems with the old Arduino library. When using the old library for screen driving, it will produce reverse color display. You can open the Arduino. The library management option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## Product Features
 
 - 5V DC power supply

docs/zh_CN/core/basic.md

@@ -24,6 +24,15 @@ M5Stack Basic 由两个可分离部分堆叠组成. 顶部放置了电路板，
 1)Basic内部没有集成IMU传感器
 2)GPIO0, GPIO12, GPIO13, GPIO15, GPIO34，与 I2C 协议相关的引脚没有被引出**
 
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## 产品特性
 
 - 5V 直流电源

docs/zh_CN/core/face_kit.md

@@ -36,6 +36,14 @@
 
 关于本套件中的主机"Gray"的更多信息，请点击查看**Gray套件**
 
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## 产品特性
 
 - 5V 直流电源
@@ -55,7 +63,6 @@
 - 产品重量：264.6g
 
 
-
 ## 套件清单:
 
 - 1x GRAY Controller

docs/zh_CN/core/fire.md

@@ -25,6 +25,15 @@ M5Stack Fire 配有三个可分离部件. 顶部与其他的M5主机一样，放
 
 如果你开发过 ESP8266，你会发现 ESP32 是 ESP8266 的完美升级版.相比之下，ESP32 具有更多 GPIO ，更多的模拟输入和两个模拟输出，多个外设接口（如备用UART）.官方开发平台 ESP-IDF 已经移植了 FreeRTOS ，借助双核与实时操作系统，能使你更加高效的去组织你的程序代码，优化程序的执行效率.
 
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## 产品特性
 
 - 5V 直流电源

docs/zh_CN/core/gray.md

@@ -23,6 +23,14 @@
 
 <img src="assets/img/product_pics/core/gray/gray_11.png">
 
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## 产品特性
 
 - 5V 直流电源

docs/zh_CN/core/m5go.md

@@ -14,6 +14,14 @@
 
 作为一款专为STEM教育而设计套件.M5GO想要做到的是使学生在获得知识的同时，收获乐趣，收获那份将自己的创意一步一步转换为现实的荣誉感.让学生可以自由的探索工程世界，制作自己的物联网产品，并将精彩的创意融入到现实生活中.
 
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
 ## 产品特性
 
 - 5V 直流电源

docs/zh_CN/core/m5go_lite.md

@@ -14,6 +14,16 @@
 
 作为一款专为STEM教育而设计套件.M5GO 想要做到的是使学生在获得知识的同时，收获乐趣，收获那份将自己的创意一步一步转换为现实的荣誉感.让学生可以自由的探索工程世界，制作自己的物联网产品，并将精彩的创意融入到现实生活中.
 
+
+**注意：** 
+
+新生产的M5Core更换了显示效果与可视角更加优质的屏幕，因此与旧版的Arduino库产生了一些兼容性问题，使用旧版程序库进行屏幕驱动时会产生反色显示的现象，您可以打开Arduino的库管理选项将您的M5Stack库升级至最新版本（0.2.8以后）来解决这个问题.
+
+<img src="assets\img\product_pics\core\basic\lib_01.jpg" width="70%">
+<br>
+<img src="assets\img\product_pics\core\basic\lib_02.jpg" width="70%">
+
+
 ## 产品特性
 
 - 5V 直流电源