You can easily auto generate a clickable table of contents with jQuery if your text is divided by (the same level of) headers. All you need to do is to wrap your text in a container div and use the setInnerLinks() function.
Disable related videos on your embedded YouTube content
When you embed a YouTube video it is good practice to restrict the related videos that appear at the end of playback to your channel only. Just imagine how your business would be affected if your competitors video would appear right on your own website.