You need to post the editorials from your own CodeChef id once the contest is over.
Following are some guidelines that you need to keep in mind while posting the editorials :
1. Format :
2. Tags :
Tags field is an important field to allow easy searching of the editorial. You need to enter tags for the editorial as follows:
3. Type :
You need to mark the editorial as Community Wiki by clicking on the community wiki check box.
4. Template :
Template for the Editorial can be found here.
You must not miss on reading a very awesome write up on How to make a good editorial by Pradeep George Mathias.