The article section is based off wiki software, so there is no Word template that will automatically make it magically work. With that said, when you create a new article and choose 'fiction' from the choice of article templates, it will come up with hidden text in the article text entry box that will kind of guide you a bit. However, wikis are a little bit strange if you've never edited or created one before, so I would definitely recommend using the 'preview' function once you start copying and pasting your text in there to make sure it is working the way you want.
If it isn't working the way you want, you can always still submit the article (even though it looks a bit broken/weird at the moment when you preview it) knowing that you can come back and re-edit it later as many times as you need to fix it. And of course you can always come back to this thread and ask more questions about how to do something specific in wiki format.
If you want to learn the basics yourself (without asking anyone questions), there are some article tutorials in the article section, including this one:
https://www.dakkadakka.com/wiki/en/Editing_Tutorial
But don't let me freak you out. It is pretty simple to get the basics (like a fiction story) into an article with very little work and experimentation.