Improve clarity and formatting in CODE_OF_CONDUCT, CONTRIBUTING, and GOVERNANCE

[AnupmaMishra12]

This PR improves the readability and structure of three key community documents:

• Added a welcoming intro line to GOVERNANCE.md
• Converted plain URLs to markdown links
• Polished grammar and tone for inclusivity
• Ensured consistent heading levels across files

These changes aim to support onboarding clarity and maintain open-source etiquette.
Contributed by @AnupmaMishra12

[netlify]

✅ Deploy Preview for carvel ready!

Name	Link
🔨 Latest commit	ff5e1f5
🔍 Latest deploy log	https://app.netlify.com/projects/carvel/deploys/69246e5d593f8b00080537cd
😎 Deploy Preview	https://deploy-preview-816--carvel.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[AnupmaMishra12]

Hi! This PR improves clarity and formatting in key community documents.
Please let me know if any changes are needed.
Also, kindly approve the pending workflows so checks can complete.
Thanks! — @AnupmaMishra12

[AnupmaMishra12]

Thanks for putting this together! The governance guide is quite comprehensive.
Just a few suggestions to improve clarity and consistency:

• Remove duplicate headings (# Carvel Governance appears twice).
• Fix the incomplete sentence under “Proposal Process”.
• Use consistent heading levels across sections (e.g., Supermajority, Decision Making).
• Consider replacing relative links with full GitHub URLs for better accessibility.
• Improve formatting of bullet points and spacing for readability.
• Clarify voting logic with a simple example.
• Optional: Add a Table of Contents and last updated date for easier navigation.

Happy to help refine this further if needed!