Update credentials.md

[Deepanshuu06]

☕️ Reasoning

🧢 Checklist

• [ ] Documentation
• [ ] Tests
• [ ] Ready to be merged

🎫 Affected issues

📌 Resources

• Security guidelines
• Contributing guidelines
• Code of conduct
• Contributing to Open Source

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[ndom91]

Thanks for your interest, but the id of the credentials provider is already credentials :pray: