docs(hookify): correct upstream URL in template README

The links pointed to anthropics/claude-code/tree/main/plugins/hookify.
The hookify plugin actually lives in the separate marketplace repo
anthropics/claude-plugins-official. Both references updated.

Found while filing anthropics/claude-plugins-official#1441 (unrelated
CLAUDE_PLUGIN_ROOT fallback fix in hookify itself).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: adelaidasofia

CHANGELOG.md

@@ -9,6 +9,12 @@ description: What's new in AI Brain Starter — plain English, no jargon
 
 ---
 
+## 2026-04-16 (p.m.) -- Hookify template README: correct upstream URL
+
+**templates/hookify-rules/README.md**:
+- Fixed two links that pointed to `github.com/anthropics/claude-code/tree/main/plugins/hookify`. The hookify plugin actually lives in a separate repo: `github.com/anthropics/claude-plugins-official/tree/main/plugins/hookify`. Both references updated.
+- Discovered while filing an upstream PR to fix a CLAUDE_PLUGIN_ROOT fallback bug in hookify itself: [anthropics/claude-plugins-official#1441](https://github.com/anthropics/claude-plugins-official/pull/1441).
+
 ## 2026-04-16 (p.m.) -- Claude Performance Self-Improvement System
 
 **scripts/claude_performance_digest.py** (new):

templates/hookify-rules/README.md

@@ -1,10 +1,10 @@
 # Hookify Rule Templates
 
-These are example rules for the [hookify plugin](https://github.com/anthropics/claude-code/tree/main/plugins/hookify) from Anthropic's official claude-code repo. They enforce behavioral rules at the tool level, catching mistakes before they happen.
+These are example rules for the [hookify plugin](https://github.com/anthropics/claude-plugins-official/tree/main/plugins/hookify) from Anthropic's official claude-code repo. They enforce behavioral rules at the tool level, catching mistakes before they happen.
 
 ## Setup
 
-1. Install hookify: In Claude Code, run `/plugin install hookify` or clone from the [claude-code repo](https://github.com/anthropics/claude-code/tree/main/plugins/hookify)
+1. Install hookify: In Claude Code, run `/plugin install hookify` or clone from the [claude-code repo](https://github.com/anthropics/claude-plugins-official/tree/main/plugins/hookify)
 2. Copy any rules you want to your vault's `.claude/` directory:
    ```bash
    cp templates/hookify-rules/hookify.*.local.md .claude/