add free ebook notification

README.md

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+### Get this product for $5
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+<i>Packt is having its biggest sale of the year. Get this eBook or any other book, video, or course that you like just for $5 each</i>
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+<b><p align='center'>[Buy now](https://packt.link/9781803248196)</p></b>
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+<b><p align='center'>[Buy similar titles for just $5](https://subscription.packtpub.com/search)</p></b>
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+
 ## DevOps Project for Beginners   
 
 [![Image](https://github.com/yankils/Simple-DevOps-Project/blob/master/Devops_course.PNG "DevOps Project - CI/CD with Jenkins Ansible Docker Kubernetes ")](https://www.udemy.com/course/valaxy-devops/?referralCode=8147A5CF4C8C7D9E253F)