[text analytics] fix query param in cli call to get endpoint
fixes
@@ -83,7 +83,7 @@ or [Azure CLI][azure_cli_endpoint_lookup]:
```bash
# Get the endpoint for the text analytics resource
-az cognitiveservices account show --name "resource-name" --resource-group "resource-group-name" --query "endpoint"
+az cognitiveservices account show --name "resource-name" --resource-group "resource-group-name" --query "properties.endpoint"
```
#### Get the API Key
