Remove reference to Docker Hub page

This page does not contain any info, and the docker pull command on that page is outdated. I presume this is related to moving content to mcr

Author: flcdrg

articles/cosmos-db/local-emulator-on-docker-windows.md

@@ -12,7 +12,7 @@ ms.date: 04/20/2021
 # <a id="run-on-windows-docker"></a>Use the emulator on Docker for Windows
 [!INCLUDE[appliesto-all-apis](includes/appliesto-all-apis.md)]
 
-You can run the Azure Cosmos DB Emulator on a Windows Docker container. See the [Docker Hub](https://hub.docker.com/r/microsoft/azure-cosmosdb-emulator/) for the docker pull command and [GitHub](https://github.com/Azure/azure-cosmos-db-emulator-docker) for the `Dockerfile` and more information. Currently, the emulator does not work on Docker for Oracle Linux. Use the following instructions to run the emulator on Docker for Windows:
+You can run the Azure Cosmos DB Emulator on a Windows Docker container. See [GitHub](https://github.com/Azure/azure-cosmos-db-emulator-docker) for the `Dockerfile` and more information. Currently, the emulator does not work on Docker for Oracle Linux. Use the following instructions to run the emulator on Docker for Windows:
 
 1. After you have [Docker for Windows](https://www.docker.com/docker-windows) installed, switch to Windows containers by right-clicking the Docker icon on the toolbar and selecting **Switch to Windows containers**.
 
@@ -145,4 +145,4 @@ In this article, you've learned how to use the local emulator for free local dev
 
 * [Export the Azure Cosmos DB Emulator certificates for use with Java, Python, and Node.js apps](local-emulator-export-ssl-certificates.md)
 * [Use command line parameters and PowerShell commands to control the emulator](emulator-command-line-parameters.md)
-* [Debug issues with the emulator](troubleshoot-local-emulator.md)
+* [Debug issues with the emulator](troubleshoot-local-emulator.md)