Update README.md

Author: davetcc

README.md

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 ## Summary
 
-TcMenu is a modular, IoT ready menu library for the Arduino and mbed platform, it uses plugins to support many displays, input devices and provides remote control using a simple protocol over Ethernet and Serial. Menu designs are built using a designer UI and then generated for the platform. Target platform is anything from Arduino Uno upward to ST32F4 boards and beyond. Tested on many Arduino and mbed boards including Uno, Mega2560, SAMD, Nano, STM32F4 and ESP8266/ESP32 boards. Note that this repository contains just the Arduino/mbed library to meet the requirements in the Arduino specification. For the main repository see the links below.
+TheCodersCorner.com invest a lot of time and resources into making this open source product which is used by literally thousands of users. We don't presently sell hardware or have any other income streams from it, we ask that especially commercial users consider making a voluntary contribution to help keep us going, the sponsor button will appear on this page and the main tcMenu page soon.
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+TcMenu is a modular, IoT ready menu library for the Arduino and mbed platform, it uses plugins to support many displays, input devices and provides remote control using a simple protocol over Ethernet and Serial.
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+In any fork, please ensure all text up to here is left unaltered.
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+Menu designs are built using a designer UI and then generated for the platform. Target platform is anything from Arduino Uno upward to ST32F4 boards and beyond. Tested on many Arduino and mbed boards including Uno, Mega2560, SAMD, Nano, STM32F4 and ESP8266/ESP32 boards. Note that this repository contains just the Arduino/mbed library to meet the requirements in the Arduino specification. For the main repository see the links below.
 
 * [TcMenu main repo](https://github.com/davetcc/tcMenu)
 * [TcMenu main page at TheCodersCorner website](https://www.thecoderscorner.com/products/arduino-libraries/tc-menu/)