[AI Docs] Add make-pr skill availability note to skills reference

AI Docs/05-SKILLS-REFERENCE.md

@@ -518,3 +518,30 @@ When requesting implementations:
 - Constraints (Resource usage, signal conventions)
 
 **When in doubt:** Reference `AI_HELP.md` for project-specific conventions before asking questions.
+
+---
+
+## Note About `make-pr` Skill Availability
+
+The **`make-pr`** skill (`.opencode/skills/make-pr.json`) is available for use! This skill will:
+- Generate comprehensive, human-readable PR descriptions
+- List testing strategies for each change area  
+- Validate changes before PR creation
+- Format PR descriptions with clear sections
+
+**When to use `make-pr` skill:**
+- When ready to submit a PR from your current branch (any platform)
+- Before pushing code that requires peer review
+- To ensure all changes are properly documented and validated
+- When creating PRs for features, fixes, or refactoring
+
+The skill automatically adapts to your hosting platform:
+- **GitHub:** Creates PR via API with comprehensive descriptions
+- **Gitea:** Falls back to web UI creation (URL provided above)
+
+**Prompt example:**
+```
+"Create a pull request from move_docs to develop. The changes include moving 
+all AI documentation files into an 'AI Docs' folder with organized structure."
+```
+