Merge pull request #2758 from thaJeztah/19.03_backport_update_security_link

[19.03 backport] docs: update URL for security landing page
Upstream-commit: 11b255cb7df565b8efa3848d25ef774ee676f110
Component: cli

Author: tiborvass

components/cli/docs/reference/commandline/login.md

@@ -53,7 +53,7 @@ $ cat ~/my_password.txt | docker login --username foo --password-stdin
 `docker login` requires user to use `sudo` or be `root`, except when:
 
 1.  connecting to a remote daemon, such as a `docker-machine` provisioned `docker engine`.
-2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface) for details.
+2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/#docker-daemon-attack-surface) for details.
 
 You can log into any public or private repository for which you have
 credentials.  When you log in, the command stores credentials in

components/cli/man/src/login.md

@@ -6,7 +6,7 @@ do not specify a `SERVER`, the command uses Docker's public registry located at
 `docker login` requires user to use `sudo` or be `root`, except when:
 
 1.  connecting to  a remote daemon, such as a `docker-machine` provisioned `docker engine`.
-2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/security/#/docker-daemon-attack-surface) for details.
+2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/#docker-daemon-attack-surface) for details.
 
 You can log into any public or private repository for which you have
 credentials.  When you log in, the command stores encoded credentials in