Read me updated and usage image updated

[SinghHimadri]

Issue that this pull request solves

Closes: # (issue number)

Proposed changes

Brief description of what is fixed or changed

Types of changes

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• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update (Documentation content changed)
• [ ] Other (please describe):

Checklist

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• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings

Screenshots

Please attach the screenshots of the changes made in case of change in user interface

Other information

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[SinghHimadri]

@rpotter12 Please review.

[SinghHimadri]

@rpotter12 please add labels