fix comma

Author: Orin-Thomas

.openpublishing.redirection.json

@@ -65149,13 +65149,13 @@
       "source_path": "learn-pr/azure/manage-secrets-with-azure-key-vault/7-summary.yml",
       "redirect_url": "/azure/security/",
       "redirect_document_id": false
-    }
-        {
+    },
+    {
       "source_path": "learn-pr/tensorflow/intro-natural-language-processing-tensorflow/notebooks/2-represent-text-as-tensors.ipynb",
       "redirect_url": "/azure/machine-learning/",
       "redirect_document_id": false
     },
-        {
+    {
       "source_path": "learn-pr/tensorflow/intro-natural-language-processing-tensorflow/notebooks/3-embeddings.ipynb",
       "redirect_url": "/azure/machine-learning",
       "redirect_document_id": false