Update README.md

Author: Amir-Shamsi

README.md

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  <img src="photos/cpu-sch-algo-logo.png" alt="cpu-scheduling-algos" />
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 This is an OS simulation that has been implemented by the CPU scheduling algorithms such as:<br>
 - First Come, First Serve (<a href="https://en.wikipedia.org/wiki/Scheduling_(computing)#First_come,_first_served">FCFS</a>)
 - Round Robin (<a href="https://en.wikipedia.org/wiki/Round-robin_scheduling">RR</a>)