Update Learning Hub for Copilot CLI v1.0.69-1.0.70 features

New features documented:
- .github/copilot/settings.json for repository-pinned model/effort/context settings (v1.0.70)
- /refine command to rewrite rough prompts into clear ones (v1.0.70)
- Forge auto-creating draft skills from workflow patterns (v1.0.70)
- preToolUse exit code 2 for explicit tool call denial (v1.0.70)
- /plugins dashboard for managing plugins mid-session (v1.0.69)
- Plugin SHA pinning for reproducible installations (v1.0.70)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

website/src/content/docs/learning-hub/creating-effective-skills.md

@@ -3,7 +3,7 @@ title: 'Creating Effective Skills'
 description: 'Master the art of writing reusable, shareable skill folders that deliver consistent results across your team.'
 authors:
   - GitHub Copilot Learning Hub Team
-lastUpdated: 2026-06-30
+lastUpdated: 2026-07-11
 estimatedReadingTime: '9 minutes'
 tags:
   - skills
@@ -413,6 +413,10 @@ A: In v1.0.66+, the agent can propose draft skill additions or improvements as i
 
 This opens a review flow where you can accept, reject, or defer each proposed change — giving you full control over how your skill library evolves. No changes are applied until you approve them.
 
+**Q: What is Forge and how does it create skills automatically?**
+
+A: In v1.0.70+, Forge is the CLI's workflow pattern detector. When the CLI observes that you or an agent are repeatedly following a clear workflow pattern — a sequence of steps that keeps recurring across prompts — it automatically creates a **draft skill** capturing that pattern. You then review and approve it with `/chronicle skills review` before it is saved. This makes growing your skill library feel organic: instead of manually authoring skills from scratch, Forge surfaces them from work you are already doing.
+
 ## Common Pitfalls to Avoid
 
 - ❌ **Vague description**: "Code helper" doesn't help agents discover the skill