MINOR: Adjust ToC of zk2kraft and fix wrong section number of docker (#19146)

Reviewers: Chia-Ping Tsai <chia7712@gmail.com>

docs/documentation.html

@@ -76,7 +76,9 @@
       <!--#include virtual="ecosystem.html" -->
       <h3 class="anchor-heading"><a id="upgrade" class="anchor-link"></a><a href="#upgrade">1.5 Upgrading From Previous Versions</a></h3>
       <!--#include virtual="upgrade.html" -->
-      <h3 class="anchor-heading"><a id="docker" class="anchor-link"></a><a href="#docker">1.6 Docker</a></h3>
+      <h3 class="anchor-heading"><a id="zk2kraft-summary" class="anchor-link"></a><a href="#zk2kraft-summary">1.6 KRaft vs ZooKeeper</a></h3>
+      <!--#include virtual="zk2kraft-summary.html" -->
+      <h3 class="anchor-heading"><a id="docker" class="anchor-link"></a><a href="#docker">1.7 Docker</a></h3>
       <!--#include virtual="docker.html" -->
 
     <h2 class="anchor-heading"><a id="api" class="anchor-link"></a><a href="#api">2. APIs</a></h2>

docs/documentation/zk2kraft.html

@@ -15,8 +15,8 @@
  limitations under the License.
 -->
 
-<!--#include virtual="../includes/_header.htm" -->
-<!--#include virtual="../includes/_top.htm" -->
+<!--#include virtual="../../includes/_header.htm" -->
+<!--#include virtual="../../includes/_top.htm" -->
 <div class="content">
 <div class="p-zk2kraft">
     <h1>Differences Between KRaft mode and ZooKeeper mode</h1>
@@ -316,5 +316,5 @@
         </li>
     </ul>
 </div>
-<!--#include virtual="../includes/_footer.htm" -->
+<!--#include virtual="../../includes/_footer.htm" -->
 </div>

docs/toc.html

@@ -27,7 +27,7 @@
                 <li><a href="#quickstart">1.3 Quick Start</a>
                 <li><a href="#ecosystem">1.4 Ecosystem</a>
                 <li><a href="#upgrade">1.5 Upgrading</a>
-                <li><a href="/{{version}}/zk2kraft">1.6 Differences Between KRaft mode and ZooKeeper mode</a>
+                <li><a href="#zk2kraft-summary">1.6 KRaft vs ZooKeeper</a>
                 <li><a href="#docker">1.7 Docker</a>
             </ul>
         

docs/upgrade.html

@@ -67,7 +67,7 @@
             have to be <a href="/39/documentation.html#kraft_zk_migration">migrated to KRaft mode</a> before they can be upgraded to 4.0.x.
         </li>
         <li>
-            Apache Kafka 4.0 ships with a brand-new group coordinator implementation (See <a href="https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=217387038#KIP848:TheNextGenerationoftheConsumerRebalanceProtocol-GroupCoordinator">here</a>.
+            Apache Kafka 4.0 ships with a brand-new group coordinator implementation (See <a href="https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=217387038#KIP848:TheNextGenerationoftheConsumerRebalanceProtocol-GroupCoordinator">here</a>).
             Functionally speaking, it implements all the same APIs. There are reasonable defaults, but the behavior of the new
             group coordinator can be tuned by setting the configurations with prefix <code>group.coordinator</code>.
         </li>

docs/zk2kraft-summary.html

@@ -0,0 +1,27 @@
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<script><!--#include virtual="js/templateData.js" --></script>
+
+<script id="zk2kraft-summary-template" type="text/x-handlebars-template">
+<p>
+    There are many differences between ZooKeeper mode and KRaft mode.
+    The <a href="/{{version}}/documentation/zk2kraft.html">Differences Between KRaft mode and ZooKeeper mode</a> page lists all of these differences,
+    including configurations, metrics, and behavioral changes.
+</p>
+</script>
+<div class="p-zk2kraft-summary"></div>