Regarding my note to include a citation to the website for embedded podcasts/videos

I've included this here for now as it is what I have been doing. My rationale was that in the case a podcast is removed from the source we embed from or a YouTube video is taken down and the embed link is broken, the citation should give enough information that an individual can find the source elsewhere (or we can find it elsewhere to fix it)

I can remove this from the guide if we don't want to follow this!