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README.md

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 # MultiThreadTCP
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+- [Reference](https://codinginfinite.com/multi-threaded-tcp-server-core-example-csharp/)
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+## Explanation
+- `StartListener` method keeps listening for incoming connections & every time when a new client gets connected
+- It creates a new Thread of `HandleClient` to handle the connected client in the background
+- Concurrently, server start waiting for another new client.
+- For client, there is 2 distinct clients connecting to the same server. 
+- Each client will send and receive message for 3x in interval of 2s