remove $5 campaign

Author: Packt-ITService

README.md

@@ -1,8 +1,3 @@
-## $5 Tech Unlocked 2021!
-[Buy and download this product for only $5 on PacktPub.com](https://www.packtpub.com/)
------
-*The $5 campaign         runs from __December 15th 2020__ to __January 13th 2021.__*
-
 ## Python Machine Learning (3rd Ed.) Code Repository
 
 ![Python 3.6](https://img.shields.io/badge/Python-3.7-blue.svg)