fix wandb logger module import in example (#2041)

examples/visualize-wandb.ipynb

@@ -110,13 +110,15 @@
    "cell_type": "markdown",
    "id": "e974cabdbe70b667",
    "metadata": {},
-   "source": ""
+   "source": []
   },
   {
    "cell_type": "markdown",
    "id": "5178ca9445b844e4",
    "metadata": {},
-   "source": "W&B can also be initialized programmatically for use outside the CLI to parse and log the results."
+   "source": [
+    "W&B can also be initialized programmatically for use outside the CLI to parse and log the results."
+   ]
   },
   {
    "cell_type": "code",
@@ -126,7 +128,7 @@
    "outputs": [],
    "source": [
     "import lm_eval\n",
-    "from lm_eval.logging_utils import WandbLogger\n",
+    "from lm_eval.loggers import WandbLogger\n",
     "\n",
     "results = lm_eval.simple_evaluate(\n",
     "    model=\"hf\",\n",