fix: Added styles.yml and documentation.md file for GitHub Issue Templates

[NarendraKoya999]

Related Issue

• Mention issue for which this pull request is a part of #663

Proposed Changes

• Added styles.yml File for GitHub Issue Templates using for Raising Enhancement, Code style related Requests.
• Also, added documentation.md file for Raising Documentation related Requests.
• Chnage 2

Additional Info

• Any additional information or context

Checklist

• [ ] ✅ My code follows the code style of this project.
• [ ] 📝 My change requires a change to the documentation.
• [ ] 🎀 I have updated the documentation accordingly.
• [ ] 🌟 ed the repo

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Output Screenshots

Screenshot #1	Screenshot #2
Title goes here	Title goes here
Image goes here	Image goes here

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[NarendraKoya999]

@agamjotsingh18 . Please review on this PR and add valid Labels under GSSOC'23