Update README.md

Author: davetcc

README.md

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 Dave Cherry / TheCodersCorner.com made this library available for you to use. It takes me significant effort to keep all my libraries current and working on a wide range of boards. Please consider making at least a one off donation via the sponsor button if you find it useful. In forks, please keep text to here intact.
 
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 TaskManagerIO is an evolution of the task management class that was originally situated in IoAbstraction. It is backed by a simple queue that supports, immediate queuing, scheduled tasks, and events. It is safe to add tasks from another thread, and safe to trigger events from interrupts. However, your tasks are shielded from threads and interrupts making your code simpler.
 
 We are in a new era of embedded development, where RTOS, multiple threads (and even cores) have become a relatity. Any viable task manager needs to be capable in these environments, while still protecting tasks from multithreaded concerns. We are pleased to say, this version meets both goals. Importantly, any sketch that worked on IoAbstraction task manager will work with this library unaffected.