docs: update meta.json to clarify core rules section

Rel1cx · Rel1cx · commit 0ef739bc49a1 · 2025-02-23T08:13:37.000+08:00
diff --git a/apps/website/content/docs/rules/meta.json b/apps/website/content/docs/rules/meta.json
@@ -1,7 +1,7 @@
 {
   "pages": [
     "overview",
-    "------",
+    "---Core Rules---",
     "avoid-shorthand-boolean",
     "avoid-shorthand-fragment",
     "ensure-forward-ref-using-ref",
