feat: Add quickstart examples to docs (agent, chat, autocomplete, edit)

[BekahHW]

Description

closes CON-2146

This pull request adds a comprehensive "Quick Start Tutorial" to the documentation, providing new users with a hands-on, step-by-step introduction to all four core features of Continue (Autocomplete, Edit, Chat, and Agent). The tutorial includes interactive instructions, code samples, keyboard shortcuts, and links to further resources, making it easier for users to get up and running quickly.

New user onboarding and documentation:

• Added a new quick-start.mdx page under docs/getting-started/ that walks users through practical exercises for Autocomplete, Edit, Chat, and Agent features, including code snippets and step-by-step guidance.
• Included tips, notes, and warnings to help users understand best practices and potential pitfalls while using each feature.
• Provided keyboard shortcuts for both VS Code and JetBrains IDEs to enhance usability during the tutorial.

Next steps and advanced resources:

• Added a "Next Steps" section with cards linking to customization, advanced features, model providers, and the community.
• Included a "Feature Deep Dives" section with accordion links to detailed guides for advanced configuration and enterprise features.

[ What changed? Feel free to be brief. ]

AI Code Review

• Team members only: AI review runs automatically when PR is opened or marked ready for review
• Team members can also trigger a review by commenting @continue-general-review or @continue-detailed-review

Checklist

• I've read the contributing guide
• The relevant docs, if any, have been updated or created
• The relevant tests, if any, have been updated or created

Screen recording or screenshot

[ When applicable, please include a short screen recording or screenshot - this makes it much easier for us as contributors to review and understand your changes. See this PR as a good example. ]

Screen.Recording.2025-08-15.at.3.19.04.PM.mov

Tests

[ What tests were added or updated to ensure the changes work as expected? ]

---

Summary by cubic

Adds a Quick Start Tutorial page that teaches Autocomplete, Edit, Chat, and Agent with step-by-step exercises, code samples, and shortcuts per CON-2146. Updates the docs navigation to include the new page.

• New Features
  • Added docs/getting-started/quick-start.mdx with hands-on tasks, tips, and warnings.
  • Documented keyboard shortcuts for VS Code and JetBrains.
  • Linked “Next Steps” cards and “Feature Deep Dives” accordions to advanced guides and community.
  • Updated docs/docs.json to surface the page in the Getting Started sidebar.

[BekahHW]

@bdougie here's the quick start.

[sestinj]

🎉 This PR is included in version 1.5.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[sestinj]

🎉 This PR is included in version 1.7.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀