Question: How to add images on Wiki?

[Error]

That's quite simple; have a look at the sidebar on the left of the page and scroll/look at the bottom of it. You'll find the "Toolbox" with, amongst other things, a link to the "Upload file" page. After that you just need to follow the instructions on that page and then add the filename you uploaded it to in the | image = field on the charact infobox, as you've already found out.

PS: Another tip is to look at the MediaWiki documentation first when you're unsure how to do anything on the Wiki. Nearly everything is documented better there than I can explain it to you; here is the MediaWiki help page on (adding) images, for example.

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