title: Injecting a div into my site with JS (not able to edit the main theme files) is this possible?
body: <p>I have a site over at <a href="http://sofubiki.com" rel="nofollow noreferrer">https://sofubiki.com</a>, running on Wiki.js</p>
  <p>There's a column down the left hand side that holds the contents, then there's a big space beneath this that'd be perfect for adding some ad banners or other info. Is there any way to insert a section in this column without being able to edit the main site theme (limited knowledge and a confusing process!) Looking around the web it seems that a JS div is a possibility but I'm not too sure!?</p>
  <p>Any help would be much appreciated!</p>
  <p>Thanks!</p>