doc/SUMMARY: move host-options to the appropriate section

Author: astro

doc/src/SUMMARY.md

@@ -8,12 +8,12 @@
   - [CPU emulation](./cpu-emulation.md)
   - [Output options](./output-options.md)
   - [MicroVM options reference](./microvm-options.md)
-  - [Host options reference](./host-options.md)
 - [Running a MicroVM as a package](./packages.md)
 - [Preparing a host for declarative MicroVMs](./host.md)
   - [A simple network setup](./simple-network.md)
   - [Advanced network setup](./advanced-network.md)
   - [Host systemd services](./host-systemd.md)
+  - [Host options reference](./host-options.md)
 - [Declarative MicroVMs](./declarative.md)
 - [Imperative MicroVM management](./microvm-command.md)
   - [Deploy via SSH](./ssh-deploy.md)