Update README.md

Author: 151ali

README.md

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 # Distributed_algorithms_omnetpp
 Implementation of some distributed algorithm in OMNeT++ Discrete Event Simulator. 
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+**University students beware!** 
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+If you’re a student in a Distributed systems class, you shouldn’t copy (or copy then modify) this code without permission. And even then, I would advise against heavily relying on this code because it may contains a lot of errors.
+You should alternativelly inspirate from it, you may find better ideas to resolve these problems.
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 ## Requirements
 - Ubuntu 16.04
 - [OMNeT++ 5.6.2](https://omnetpp.org/download/)