fixed broken link and removed etcd backup stuff for 2.1

content/rancher/v2.x/en/installation/after-installation/_index.md

@@ -1,6 +1,7 @@
 ---
 title: After Installation
 weight: 360
+draft: true
 ---
 
 # After Installation

content/rancher/v2.x/en/installation/after-installation/etcd-backup-and-restoration/_index.md

@@ -1,6 +1,7 @@
 ---
 title: Etcd Backup and Restoration
 weight: 370
+draft: true
 ---
 
 # Etcd Backup and Restoration

layouts/shortcodes/note_server-tags.html

@@ -1,7 +1,7 @@
 <blockquote>
 	<p><strong>Note:</strong></p>
 	<ul>
-		<li><code>rancher/rancher</code> is hosted on <a href="https://hub.docker.com/r/rancher/rancher/tags/">DockerHub</a>. If you don't have access to DockerHub, or you are installing Rancher without an internet connection, refer to <a href="/rancher/v2.x/en/installation/air-gap-installation/install-from-private-registry/">Installing From a Private Registry</a>.</li>
+		<li><code>rancher/rancher</code> is hosted on <a href="https://hub.docker.com/r/rancher/rancher/tags/">DockerHub</a>. If you don't have access to DockerHub, or you are installing Rancher without an internet connection, refer to <a href="/rancher/v2.x/en/installation/air-gap-installation/">Air Gap Installation</a>.</li>
 		<li>For a list of other Rancher Server tags available, refer to <a href="/rancher/v2.x/en/installation/server-tags/">Rancher Server Tags</a>.</li>
 	</ul>
 </blockquote>