Merge pull request docker#7685 from docker/backport-fixes

Backport fixes

Author: bermudezmt

datacenter/dtr/2.5/guides/admin/upgrade.md

@@ -4,7 +4,7 @@ description: Learn how to upgrade your Docker Trusted Registry
 keywords: dtr, upgrade, install
 ---
 
-{% assign previous_version="2.3" %}
+{% assign previous_version="2.4" %}
 
 DTR uses [semantic versioning](http://semver.org/) and we aim to achieve specific
 guarantees while upgrading between versions. We never support downgrading. We

get-started/index.md

@@ -105,13 +105,13 @@ By contrast, a **virtual machine** (VM) runs a full-blown "guest" operating
 system with _virtual_ access to host resources through a hypervisor. In general,
 VMs provide an environment with more resources than most applications need.
 
-![Container stack example](https://www.docker.com/sites/default/files/Container%402x.png){:width="300px"} | ![Virtual machine stack example](https://www.docker.com/sites/default/files/VM%402x.png){:width="300px"}
+![Container stack example](/images/Container%402x.png){:width="300px"} | ![Virtual machine stack example](/images/VM%402x.png){:width="300px"}
 
 ## Prepare your Docker environment
 
-Install a [maintained version](https://docs.docker.com/engine/installation/#updates-and-patches){: target="_blank" class="_"}
+Install a [maintained version](/engine/installation/#updates-and-patches){: target="_blank" class="_"}
 of Docker Community Edition (CE) or Enterprise Edition (EE) on a
-[supported platform](https://docs.docker.com/engine/installation/#supported-platforms){: target="_blank" class="_"}.
+[supported platform](/ee/supported-platforms/){: target="_blank" class="_"}.
 
 > For full Kubernetes Integration
 >
@@ -150,7 +150,7 @@ is available in
     ...
     ```
 
-> To avoid permission errors (and the use of `sudo`), add your user to the `docker` group. [Read more](https://docs.docker.com/engine/installation/linux/linux-postinstall/){: target="_blank" class="_"}.
+> To avoid permission errors (and the use of `sudo`), add your user to the `docker` group. [Read more](/engine/installation/linux/linux-postinstall/){: target="_blank" class="_"}.
 
 ### Test Docker installation
 
@@ -213,7 +213,7 @@ docker container ls -aq
 
 ## Conclusion of part one
 
-Containerization makes [CI/CD](https://www.docker.com/use-cases/cicd){: target="_blank" class="_"} seamless. For example:
+Containerization makes [CI/CD](https://www.docker.com/solutions/cicd){: target="_blank" class="_"} seamless. For example:
 
 - applications have no system dependencies
 - updates can be pushed to any part of a distributed application