Broken link fixed

Author: pritamso

articles/search/resource-tools.md

@@ -20,5 +20,5 @@ The following tools are built by engineers at Microsoft, but aren't part of the
 |-----------|------------ |-------------|
 | [Azure Cognitive Search Lab readme](https://github.com/Azure-Samples/azure-search-lab/blob/main/README.md) | Connects to your search service with a Web UI that exercises the full REST API, including the ability to edit a live search index. | [https://github.com/Azure-Samples/azure-search-lab](https://github.com/Azure-Samples/azure-search-lab) |
 | [Knowledge Mining Accelerator readme](https://github.com/Azure-Samples/azure-search-knowledge-mining/blob/main/README.md) | Code and docs to jump start a knowledge store using your data. | [https://github.com/Azure-Samples/azure-search-knowledge-mining](https://github.com/Azure-Samples/azure-search-knowledge-mining) |
-| [Back up and Restore readme](https://github.com/liamca/azure-search-backup-restore/blob/main/README.md) | Download a populated search index to your local device and then upload the index and its content to a new search service. | [https://github.com/liamca/azure-search-backup-restore](https://github.com/liamca/azure-search-backup-restore) |
+| [Back up and Restore readme](https://github.com/liamca/azure-search-backup-restore/blob/master/README.md) | Download a populated search index to your local device and then upload the index and its content to a new search service. | [https://github.com/liamca/azure-search-backup-restore](https://github.com/liamca/azure-search-backup-restore) |
 | [Performance testing readme](https://github.com/Azure-Samples/azure-search-performance-testing/blob/main/README.md) | This solution helps you load test Azure Cognitive Search. It uses Apache JMeter as an open source load and performance testing tool and Terraform to dynamically provision and destroy the required infrastructure on Azure. | [https://github.com/Azure-Samples/azure-search-performance-testing](https://github.com/Azure-Samples/azure-search-performance-testing) |