docs: Add direct link to FAQ for Equatable usage

[roundspecs]

Status

READY

Breaking Changes

NO

Description

This update adds a direct link to the FAQ section that explains when to use Equatable. This will help readers easily find the relevant information, addressing a common question. Although the link is mentioned in the "Key Topics" section, its current placement do not clearly indicate that it leads to the FAQ.

Type of Change

• [ ] ✨ New feature (non-breaking change which adds functionality)
• [ ] 🛠️ Bug fix (non-breaking change which fixes an issue)
• [ ] ❌ Breaking change (fix or feature that would cause existing functionality to change)
• [ ] 🧹 Code refactor
• [ ] ✅ Build configuration change
• [x] 📝 Documentation
• [ ] 🗑️ Chore

[felangel]

Thanks for the contribution! I'd prefer to close this since as you mentioned, the key topics already links to the equatable faqs and the format is standardized across the various tutorials.