Reassess method of linking follow-up material at end of docs pages #81
Description
Opening this following discussion with @AshleyCliff and @NucciTheBoss.
We currently have "Next Steps" sections in the COS how-to and the deploy Slurm how-to which link to the next how-to we expect the user to proceed to. Rather than "Next Steps", we may want to take inspiration from the "Related topics" section in the Microcloud docs.
We could then link related sections of our documentation without prescribing a fixed sequence for the how-tos. We could still use logical subsections for the how-tos ("Setup", "Manage", etc.) and use the "Next" and "Previous" buttons at the end of each page for a suggested follow-up how-to, where this makes sense, but we would be more open to linking to, e.g., Explanation pages, Reference pages, or external documentation.
Once the tutorial in #80 is merged, we should reassess our docs "flow" in general to ensure we're directing people reasonably through the sections.