Consider creating a video widget to house all the components for the video. The widget can be created in LibGuides, or create a Quick Answer for the video and then embed the Quick Answer via a widget.
The benefit of the video widget is the video code (whether a link, linked thumbnail, or embedded video) and the transcript link is always bundled together. This makes it easy to reuse the video both within and outside of Springshare products.
Include the transcript link below the video link.
Include the transcript link below the image.
Include the transcript below the video.