Feature/Steps to create git tag and Releases

[dhirajchaurasiya10]

Fixes #533

What did I do?

• Added steps to create Git tags and release in the CONTRIBUTING.md file

Pre-launch Checklist

• [x] I read the Contributor Guide and followed the process outlined there for submitting PRs.
• [x] Reference to a related issue in your repository.
• [x] Description of the changes proposed in the pull request.
• [x] I listed at least one issue that this PR fixes in the description above.

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