When you attach an image file to a Wiki, you can insert that image directly into the Wiki’s content.
First, attach your image to the Wiki.
Next, click “Edit” and then “Insert file”.
Finally, click “Add image tag”.
This will add a “#image(file ID number)” tag to the Wiki’s content field, which will display the image once you save.
If you would prefer to insert the image tag manually, you can obtain the image’s File ID here and type “#image(file ID number)” in the Wiki’s content field.
The result: