fix: missing auto_sync in intro doc

docs/00-introduction.ipynb

@@ -189,7 +189,7 @@
       "source": [
         "from semantic_router.routers import SemanticRouter\n",
         "\n",
-        "sr = SemanticRouter(encoder=encoder, routes=routes)"
+        "sr = SemanticRouter(encoder=encoder, routes=routes, auto_sync="local")"
       ]
     },
     {