Changes

==References==

https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-spark.html

https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-gs.html

https://www.databricks.com/glossary/what-is-rdd#:~:text=RDD%20was%20the%20primary%20user,that%20offers%20transformations%20and%20actions.

https://www.oreilly.com/library/view/apache-spark-2x/9781787126497/d0ae45f4-e8a1-4ea7-8036-606b7e27ddfd.xhtml

https://data-flair.training/blogs/spark-rdd-operations-transformations-actions/