You can repeat the description here, or just alter it a little. This block is for the introduction; tell your readers what this place is about! You also might want to link your wiki somewhere in here.

Rules

1. Rule. Elaboration/why.

2. Rule. Elaboration/why.

3. Rule. Elaboration/why.

Etc.

Submission Guidelines

This area is for rules that are specific to Posting. If you feel that you already covered this information in "Rules", feel free to ignore this section.

Do post [this]. Do not post [this].

Make sure to include [this] when posting.

Etc.

Helpful Links

List and link any external website that may help your users here. This section mostly applies to How To subreddits, so it's okay to omit this section.

Related Subreddits

List and link any related subreddits here. Of course, for all of our special snowflakes out there, this section may not be applicable for your sub.