(AzureCXP) fixes MicrosoftDocs/azure-ai-docs#400052

Updated line number 150

Author: ManoharLakkoju-MSFT

articles/search/search-semi-structured-data.md

@@ -147,7 +147,7 @@ POST {{baseUrl}}/datasources?api-version=2024-07-01  HTTP/1.1
         "type": "azureblob",
         "subtype": null,
         "credentials": {
-            "connectionString": "{{storageConnectionString}}"
+            "connectionString": "{{storageConnection}}"
         },
         "container": {
             "name": "{{blobContainer}}",