doc/release-notes: document cosmoc removal

nixos/doc/manual/from_md/release-notes/rl-2205.section.xml

@@ -1190,6 +1190,13 @@
           example.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <literal>pkgs.cosmopolitan</literal> no longer provides the
+          <literal>cosmoc</literal> command. It has been moved to
+          <literal>pkgs.cosmoc</literal>.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-22.05-notable-changes">

nixos/doc/manual/release-notes/rl-2205.section.md

@@ -429,6 +429,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
   See the `vscode` package for a more detailed example.
 
+- `pkgs.cosmopolitan` no longer provides the `cosmoc` command. It has been moved to `pkgs.cosmoc`.
+
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
 
 ## Other Notable Changes {#sec-release-22.05-notable-changes}