nixos/rl-notes: Add mention of zfs.latestCompatibleLinuxPackges

nixos/doc/manual/from_md/release-notes/rl-2111.section.xml

···
           this up.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          Zfs: <literal>latestCompatibleLinuxPackages</literal> is now
+          exported on the zfs package. One can use
+          <literal>boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;</literal>
+          to always track the latest compatible kernel with a given
+          version of zfs.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
 </section>

nixos/doc/manual/release-notes/rl-2111.section.md

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 - The [networking.wireless.iwd](options.html#opt-networking.wireless.iwd.enable) module has a new [networking.wireless.iwd.settings](options.html#opt-networking.wireless.iwd.settings) option.
 
 - The [services.syncoid.enable](options.html#opt-services.syncoid.enable) module now properly drops ZFS permissions after usage. Before it delegated permissions to whole pools instead of datasets and didn't clean up after execution. You can manually look this up for your pools by running `zfs allow your-pool-name` and use `zfs unallow syncoid your-pool-name` to clean this up.
+
+- Zfs: `latestCompatibleLinuxPackages` is now exported on the zfs package. One can use `boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;` to always track the latest compatible kernel with a given version of zfs.