Add to readme

Author: nikolajlauridsen

15/umbraco-cms/fundamentals/setup/server-setup/README.md

@@ -29,3 +29,7 @@ Best practices for running Umbraco on Azure Web Apps.
 ## [Runtime modes](runtime-modes.md)
 
 The runtime mode setting optimizes Umbraco for the best development experience or optimal production environment.
+
+## [Running Umbraco in Docker](running-umbraco-in-docker.md)
+
+Overview of consideration when running Umbraco in Docker.