Update README.md

Author: jit89

README.md

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 ![Latest Release](https://img.shields.io/github/v/release/jit89/PicoTimer?color=blue)
 ![License](https://img.shields.io/github/license/jit89/PicoTimer)
 
-A lightweight, non-blocking timer library for the RP2040...
-
 A lightweight, non-blocking, template-based timer library specifically optimized for the **Raspberry Pi Pico (RP2040)** using the [Earle Philhower](https://github.com/earlephilhower/arduino-pico) Arduino Core.
 
 ## Overview