docs: Add Next Steps section to working with clarity tutorial

[Earnwithalee7890]

Description

Added "Next Steps" and "Additional Resources" sections to guide developers on their learning path after completing the tutorial.

Changes

• ✅ Added Next Steps section with 3 recommended follow-up tutorials
• ✅ Added links to Testing, Deploying, and Frontend tutorials
• ✅ Added Additional Resources section with reference documentation
• ✅ Provides clear learning pathway for beginners

Why This Helps

Reduces the "what do I do next?" confusion that learners often experience after completing a tutorial. Creates a clear progression path through the documentation.

[CLAassistant]

All committers have signed the CLA.