remove $10 campaign

README.md

@@ -1,7 +1,3 @@
-## [Get this title for $10 on Packt's Spring Sale](https://www.packt.com/B09995?utm_source=github&utm_medium=packt-github-repo&utm_campaign=spring_10_dollar_2022)
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-For a limited period, all eBooks and Videos are only $10. All the practical content you need \- by developers, for developers
-
 # Hands-On Machine Learning for Cybersecurity
 
 <a href="https://www.packtpub.com/big-data-and-business-intelligence/hands-machine-learning-cybersecurity?utm_source=github&utm_medium=repository&utm_campaign=9781788992282"><img src="https://www.packtpub.com/media/catalog/product/cache/bf3310292d6e1b4ca15aeea773aca35e/b/0/b09995_cover.png" alt="Hands-On Machine Learning for Cybersecurity" height="256px" align="right"></a>