add $10 campaign

Author: packtutkarshr

README.md

@@ -1,3 +1,7 @@
+## [Get this title for $10 on Packt's Spring Sale](https://www.packt.com/B15135?utm_source=github&utm_medium=packt-github-repo&utm_campaign=spring_10_dollar_2022)
+-----
+For a limited period, all eBooks and Videos are only $10. All the practical content you need \- by developers, for developers
+
 # Learn SQL Database Programming
 
 <a href="https://www.packtpub.com/in/data/learn-sql-database-programming?utm_source=github&utm_medium=repository&utm_campaign=9781838984762"><img src="https://www.packtpub.com/media/catalog/product/9781838984762-original.png" alt="Learn SQL Database Programming" height="256px" align="right"></a>