Adding dockershim to glossary. (#32950)

* Adding dockershim to glossary.

* updated dockershim faq url.

Co-authored-by: Chris Negus <cnegus@redhat.com>

* Update content/en/docs/reference/glossary/dockershim.md

Co-authored-by: Tim Bannister <tim@scalefactory.com>

* Update content/en/docs/reference/glossary/dockershim.md

Co-authored-by: Tim Bannister <tim@scalefactory.com>

* Update content/en/docs/reference/glossary/dockershim.md

Co-authored-by: Tim Bannister <tim@scalefactory.com>

* Changes to accomodate review comments.

Co-authored-by: Chris Negus <cnegus@redhat.com>
Co-authored-by: Tim Bannister <tim@scalefactory.com>

content/en/docs/reference/glossary/dockershim.md

@@ -0,0 +1,18 @@
+---
+title: Dockershim
+id: dockershim
+date: 2022-04-15
+full_link: /dockershim
+short_description: >
+   A component of Kubernetes v1.23 and earlier, which allows Kubernetes system components to communicate with Docker Engine.
+
+aka:
+tags:
+- fundamental
+---
+The dockershim is a component of Kubernetes version 1.23 and earlier. It allows the kubelet
+to communicate with {{< glossary_tooltip text="Docker Engine" term_id="docker" >}}.
+
+<!--more-->
+
+Starting with version 1.24, dockershim has been removed from Kubernetes. For more information, see [Dockershim FAQ](/dockershim).