docs: clear and concised reading

[07tAnYa]

What does this PR do?

This PR modifies the contributing.md file.

Summary of changes:
Corrected grammar and spelling errors
Made the language more clear and concise
Added screenshots

Fixes #11

Requirement/Documentation

• If there is a requirement document, please, share it here. NA
• If there is ab UI/UX design document, please, share it here. NA

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

How should this be tested?

• Are there environment variables that should be set? NO
• What are the minimal test data to have? NA
• What is expected (happy path) to have (input and output)? NA
• Any other important info that could help to test that PR? NO

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

[github-actions]

Thank you for following the naming conventions! 🙏

[sujayshanbhag]

This isn't a feature. You should have prefixed it as docs. A feature would be a new functionality in the app. You can just edit it. Hope this helps.

[07tAnYa]

This isn't a feature. You should have prefixed it as docs. A feature would be a new functionality in the app. You can just edit it. Hope this helps.

okay : )

[07tAnYa]

@piyushgarg-dev Sir kindly review my PR .