Comparison script to compare two or more ec2 instances technical details

[ashivadi]

Description of changes:

Adding a comparison script that allows users to compare technical details between two or more EC2 instances.

Dependencies

1. vim

Usage:

git clone https://github.com/aws/amazon-ec2-instance-selector.git
cd amazon-ec2-instance-selector/scripts/
chmod a+x ./compare.sh
./compare.sh c6a.large c6i.large c5a.large

Output:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.