docs: fix broken link in docker-from-docker install script docs (#1269)

Author: basicdays

script-library/docs/docker.md

@@ -59,7 +59,7 @@ If you have already built your development container, run the **Rebuild Containe
 
 ### Script use
 
-See the [`docker-from-docker`](../../containers/docker-from-docker) and [`docker-from-docker-compose`](....//containers/docker-from-docker) definition for a complete working example. However, here are the general steps to use the script:
+See the [`docker-from-docker`](../../containers/docker-from-docker) and [`docker-from-docker-compose`](../../containers/docker-from-docker-compose) definition for a complete working example. However, here are the general steps to use the script:
 
 1. Add [`docker-debian.sh`](../docker-debian.sh) or [`docker-redhat.sh`](../docker-redhat.sh) to `.devcontainer/library-scripts`