Added missing cog services section from skillset

Author: HeidiSteen

articles/search/tutorial-document-layout-image-verbalization.md

@@ -441,7 +441,7 @@ POST {{searchUrl}}/skillsets?api-version=2025-05-01-preview   HTTP/1.1
     "@odata.type": "#Microsoft.Skills.Custom.ChatCompletionSkill",
     "uri": "{{chatCompletionResourceUri}}",
     "timeout": "PT1M",
-    "apiKey": "{{chatCompletionKe}}",
+    "apiKey": "{{chatCompletionKey}}",
     "name": "genAI-prompt-skill",
     "description": "GenAI Prompt skill for image verbalization",
     "context": "/document/normalized_images/*",

articles/search/tutorial-document-layout-multimodal-embeddings.md

@@ -499,7 +499,12 @@ POST {{searchUrl}}/skillsets?api-version=2025-05-01-preview   HTTP/1.1
       "parameters": {
         "projectionMode": "skipIndexingParentDocuments"
       }
-  },  
+  },
+  "cognitiveServices": {
+    "@odata.type": "#Microsoft.Azure.Search.AIServicesByIdentity",
+    "subdomainUrl": "{{cognitiveServicesUrl}}",
+    "identity": null
+  },
   "knowledgeStore": {
     "storageConnectionString": "",
     "identity": null,