Add more info links

Author: ecfan

articles/logic-apps/edit-app-settings-host-settings.md

@@ -56,7 +56,7 @@ App settings in Azure Logic Apps work similarly to app settings in Azure Functio
 |---------|---------------|-------------|
 | `APP_KIND` | `workflowApp` | Required to set the app type for the Standard logic app resource. |
 | `AzureWebJobsStorage` | None | Required to set the connection string for an Azure storage account. For more information, see [AzureWebJobsStorage](../azure-functions/functions-app-settings.md#azurewebjobsstorage). |
-| `FUNCTINONS_EXTENSION_VERSION` | `~4` | Required to set the Azure Functions version. |
+| `FUNCTINONS_EXTENSION_VERSION` | `~4` | Required to set the Azure Functions version. For more information, see [FUNCTIONS_EXTENSION_VERSION](/azure/azure-functions/functions-app-settings#functions_extension_version). |
 | `FUNCTIONS_WORKER_RUNTIME` | `dotnet` | Required to set the language worker runtime for your logic app resource and workflows. <br><br>**Note**: Previously, this setting's default value was **`node`**. Now, **`dotnet`** is the default value for all new and existing deployed Standard logic apps, even for apps that had a different different value. This change shouldn't affect your workflow's runtime, and everything should work the same way as before.<br><br>For more information, see [FUNCTIONS_WORKER_RUNTIME](../azure-functions/functions-app-settings.md#functions_worker_runtime). |
 | `ServiceProviders.Sftp.FileUploadBufferTimeForTrigger` | `00:00:20` <br>(20 seconds) | Sets the buffer time to ignore files that have a last modified timestamp that's greater than the current time. This setting is useful when large file writes take a long time and avoids fetching data for a partially written file. |
 | `ServiceProviders.Sftp.OperationTimeout` | `00:02:00` <br>(2 min) | Sets the time to wait before timing out on any operation. |