Use video embedding to put the video directly in the node so that it looks something like the image shown below. This way, it might be more convenient to see the video tutorials than needing them on a separate window or tab. If video embedding is not possible or is inconvenient, direct links may instead be used $\url{https://www.youtube.com/watch?v=iIeDX5IPInc&feature=youtu.be&target=""}$ However, this will open the video in the same tab by default.