Add note about skipping helm init refresh (bsc#1125305)

xml/deployment_scenarios.xml

@@ -1095,17 +1095,30 @@ threshold: 3
     <title>Client Configuration</title>
     <para>
      Add the webserver as a repo to <command>helm</command>.
-     </para>
+    </para>
+    <important>
+     <title>Skip Initial Refresh From Default Repository</title>
      <para>
-      This step needs to be performed on a machine where Helm is installed and
-      configured to talk to the Tiller server in the &productname; cluster.
-      Refer to, <xref linkend="sec.admin.software.helm"/>.
+      You must initialize helm on your workstation. During this process helm
+      will attempt to reach the default upstream repository which is not
+      possible in an air gapped environment. The initialization will fail.
      </para>
      <para>
-      <literal>suse-mirror</literal> will be the user-defined name for this
-      repository listed by Helm. The name of the repository must adhere to
-      <link xlink:href="https://docs.helm.sh/chart_best_practices/#chart-names">Helm Chart naming conventions</link>.
+      You must use the <literal>--skip-refresh</literal> parameter to avoid
+      this problem.
      </para>
+<screen>&prompt.user;<command>helm init --client-only --skip-refresh</command></screen>
+    </important>
+    <para>
+     This step needs to be performed on a machine where Helm is installed and
+     configured to talk to the Tiller server in the &productname; cluster.
+     Refer to, <xref linkend="sec.admin.software.helm"/>.
+    </para>
+    <para>
+     <literal>suse-mirror</literal> will be the user-defined name for this
+     repository listed by Helm. The name of the repository must adhere to
+     <link xlink:href="https://docs.helm.sh/chart_best_practices/#chart-names">Helm Chart naming conventions</link>.
+    </para>
 <screen>&prompt.user;<command>helm repo add suse-mirror <replaceable>https://&lt;charts.mymirror.local&gt;</replaceable></command>
    </screen>
    </sect3>