Add content templates

[ethanpalm]

Documentation changes

This PR adds content type templates that people can copy and modify and to help the assistant answer questions about content best practices.

Closes https://linear.app/mintlify/issue/DOC-227/templates-for-documentation-types

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For Reviewers

When reviewing documentation PRs, please consider:

✅ Technical accuracy

• Code examples work as written
• Commands and configurations are correct
• Links resolve to the right destinations
• Prerequisites and requirements are accurate

✅ Clarity and completeness

• Instructions are clear and easy to follow
• Steps are in logical order
• Nothing important is missing
• Examples help illustrate the concepts

✅ User experience

• A new user could follow these docs successfully
• Common gotchas or edge cases are addressed
• Error messages or troubleshooting guidance is helpful

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Note

Add template guide for common content types

• New guides/content-templates.mdx with editable templates for how-to, tutorial, explanation, and reference
• Adds guides/content-templates to Guides > Best practices in docs.json
• Updates guides/content-types.mdx to reference the new templates (tip + related card) and minor formatting cleanup
• Updates guides/index.mdx to include a link to Content templates under Best practices

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[ruhanponnada]

like this a lot