docs: add generated plugin reference pages

docs/plugins/reference/memory-wiki.md

@@ -0,0 +1,23 @@
+---
+summary: "Persistent wiki compiler and Obsidian-friendly knowledge vault for OpenClaw."
+read_when:
+  - You are installing, configuring, or auditing the memory-wiki plugin
+title: "Memory Wiki plugin"
+---
+
+# Memory Wiki plugin
+
+Persistent wiki compiler and Obsidian-friendly knowledge vault for OpenClaw.
+
+## Distribution
+
+- Package: `@openclaw/memory-wiki`
+- Install route: included in OpenClaw
+
+## Surface
+
+contracts: tools; skills
+
+## Related docs
+
+- [memory-wiki](/plugins/memory-wiki)