Add AI documentation skills

.ai/skills/mkdocs/agents/openai.yaml

@@ -0,0 +1,7 @@
+interface:
+  display_name: "MkDocs"
+  short_description: "Work on MkDocs and Material sites"
+  default_prompt: "Use $mkdocs to create or update this documentation site for MkDocs 1.6.1 and Material for MkDocs 9.7.1."
+
+policy:
+  allow_implicit_invocation: true