Wiki markup Vs. HTML in pages
Good job on editing the page EK, it looks good.
Using html for formatting pages in the wiki works but ideally, should be limited to instances where the wiki markup doesn't have a styling option. e.g.using the "<center></center>" tags.
The reason is that the wiki markup has some built-in features which won't be available if you only use html. For example, using the wiki "highlighting" of sections automatically creates a table of contents on the page. The table of contents makes page navigation easier and allows one to link to a specific section of a page.
For example, This Link will take you to the specific section of the FAQ's that explains how to add video's to a page.
When you use html formatting, you can't do things like that.
Again, great job on the formatting you have done. My comments here are aimed at looking at the long term project and setting a standard for page layouts and usability. There will be quite a few pages added to this topic and therefore a little time spent learning the wiki formatting now, will be a good investment.