Wikia Guide

Making a Page
To simply make a page, go to the top right of the wikia and press the icon next to the number of pages. This will direct you to a new blank page where you can make the desire page. When making a character, do not add their titles to the page name "King", "Lord" etc is not allowed, just use their full name.

Formatting Your Wiki Page
Clicking on that 'Edit' button will take you back to this editing screen.

Adding An Infobox
The rest of the fields should be pretty self explanatory. Know that you may separate information in fields with commas, or you may list things by entering twice after each. Placing things in double brackets in infobox fields as such (Remove stars): [*[Balon Hightower]*], will create a link to that specific page, as long as the title is the same. This is a great way to link to not only your family members' pages, but also your region's page, your house's page, as well as your castle's/hold's page if you create one.
 * The first thing you need as an Infobox. What is an infobox? If you've browsed the wiki, you've seen boxes on the right side of the page with a photo and specific details regarding the subject of the page.  That's  the infobox. If you typed something on your page while creating it, or you created it earlier before these steps were published, you'll want to be sure your cursor is at the very beginning of anything written on the page, because that's where the infobox needs to be inserted. To do so, click on Insert.
 * A menu will drop down. Click on Infobox.
 * Another menu will pop up with more choices to make. For the purposes of your biography, you will want to select Characters.
 * This is what you'll find next. That is essentially your infobox - at least the version that you can edit your character's information into. Let's look at the information you can fill into it. Note: Any fields that you leave blank will not show up in the infobox. The more information you do complete, however, the larger your infobox will be.
 * title1 - Your character's name, complete with title. This will be located at the top of your infobox in bigger, bolder letters than the rest of the information.
 * image1 - This is where you can upload a picture of your character, or your faceclaim. If you have previously uploaded a photo to the wiki, all you need do here is type in the complete file name, exactly as it was uploaded. If you have not already uploaded an image, clicking on this will allow you to do that.
 * caption1 - If you'd like to caption image1, you would enter that caption in this field.

When you get all of your info entered into the fields, click on 'Apply Changes'. It will take you back to this. If you need to do more editing, just click on your infobox while on the edit screen. The menu box with 'Characters' will pop up and when you click into it, all of your fields will be there for you to edit.

At this point save your page. Save your page often, so you don't somehow lose your work. Or write up your entries for the following sections in google docs first, then paste them in.

Sections of your Wiki Page - Biography

 * The Introduction - A few sentences to both introduce and summarize the character located at the very top of the wiki page without its own heading. This generally includes their station--especially if they are a Lord or Lady of a particular noble house--and may mention their parents or their betrothed or spouse. This section basically answers the question: "Who is ________?"
 * Appearance and Character - [First Heading. In the menu bar at the top of your edit screen, click on the drop-down menu - it starts with Paragraph and has a little down arrow next to it - and select Heading.] Describe your character's physical looks here if you like, along with their manner of dress. Also discuss who they are as a person - their character, or personality - to give those who may want to collaborate with you some insight into who your character is. This section does not need to be lengthy.
 * History - [Second Heading, use same method as above to create this heading. If you want to create subheadings here, follow the same steps and simply choose Sub-heading 1 or another of your preference.] The information needed here is what many of our players would have written for the history of their character in the old bio-timelines utilized in previous chapters. Simply all events/experiences that occurred up to where we find your character now at the beginning of the roleplay.
 * Recent Events - [Third Heading]  This section is not necessary for approval at the bio stage of character creation, but is something that many players ultimately utilize, so we're including it here.  In this section, you may summarize events from your character's story as it has been told on our Enjin website. Some players choose to reference their posts as well with links, so that readers interested may be directed back to the sub and can read it for themselves.
 * Family - [Fourth Heading] This section houses your character's family tree. Feel free to list immediate family members as well as extended family here via a bulleted list as well as a link to a family echo tree, or an image of a family tree.
 * Household Members - [Fifth Heading] This section may be used to list any members of the household that are integral to your story. Many times those listed are your own. These being not main characters but supporting characters such as a Maester.

If you have done everything correctly, the page should look like this: Balon Hightower.

If you need any help, send a message on discord or on the website! Fellow community members are willing to help!

Source
From the roleplay community of AWOIAF who created this guide, all credit goes to them.