Motia.dev tutorial in docs

app/spicedb/tutorials/_meta.ts

@@ -1,4 +1,6 @@
 export default {
-  "ai-agent-authorization": "Tutorial: Authorization for AI Agents using SpiceDB",
-  "secure-rag-pipelines": "Tutorial: Securing RAG Pipelines with SpiceDB",
+  "rag-motia-spicedb":
+    "Build a Multi-Tenant RAG with Fine-Grain Authorization using Motia and SpiceDB",
+  "ai-agent-authorization": "Authorization for AI Agents using SpiceDB",
+  "secure-rag-pipelines": "Securing RAG Pipelines with SpiceDB",
 };