Update documentation

https://github.com/pmd/pmd/actions/runs/4136418984
e10cf6a4ff...bc3d9b24ad

feed.xml

@@ -5,8 +5,8 @@
         <description>Intended as a documentation theme based on Jekyll for technical writers documenting software and other technical products, this theme has all the elements you would need to handle multiple products with both multi-level sidebar navigation, tags, and other documentation features.</description>
         <link>https://pmd.github.io/pmd/</link>
         <atom:link href="https://pmd.github.io/pmd/feed.xml" rel="self" type="application/rss+xml"/>
-        <pubDate>Thu, 09 Feb 2023 10:10:47 +0000</pubDate>
-        <lastBuildDate>Thu, 09 Feb 2023 10:10:47 +0000</lastBuildDate>
+        <pubDate>Thu, 09 Feb 2023 16:57:04 +0000</pubDate>
+        <lastBuildDate>Thu, 09 Feb 2023 16:57:04 +0000</lastBuildDate>
         <generator>Jekyll v3.9.3</generator>
         
     </channel>

pmd_release_notes.html

@@ -1610,6 +1610,16 @@
 
 <h3 id="api-changes">API Changes</h3>
 
+<ul>
+  <li>The LanguageModule of Go, that only supports CPD execution, has been deprecated. This language
+is not fully supported by PMD, so having a language module does not make sense. The functionality of CPD is
+not affected by this change. The following class has been deprecated and will be removed with PMD 7.0.0:
+    <ul>
+      <li><a href="https://docs.pmd-code.org/apidocs/pmd-go/6.55.0-SNAPSHOT/net/sourceforge/pmd/lang/go/GoLanguageModule.html#"><code>GoLanguageModule</code></a></li>
+    </ul>
+  </li>
+</ul>
+
 <h3 id="external-contributions">External Contributions</h3>
 <ul>
   <li><a href="https://github.com/pmd/pmd/pull/4384">#4384</a>: [swift] Add more swift 5.x support (#unavailable mainly) - <a href="https://github.com/kenji21">Richard B.</a> (@kenji21)</li>