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README.md

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+<p align="center">
+ <img src="https://user-images.githubusercontent.com/37298971/52766913-fbb67100-3052-11e9-98c2-24351f6f6eb2.jpg" width="350">
+</p>
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 # A-Complete-Digital-Communication-System
-A MATLAB simulation of a complete digital communication system
+
+This project is the simulation of a complete digital communication system. A digital communication system consists of multiple blocks and each block is implemented here as a MATLAB function and 'main_code.m' file combines them all to build the complete system. The block diagram below shows all the block of the system in a sequential manner. 
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+## Block-Diagram 
+<p align="center">
+ <img src="https://user-images.githubusercontent.com/37298971/52767116-acbd0b80-3053-11e9-9998-4dd80c8a2825.png" width="500"
+</p>
+