[n0vella]

You can just replace youtube by tubepen on a url and you can start highlighting. Example:

Replace: https://www.youtube.com/watch?v=PHe0bXAIuk0 By: https://www.tubepen.com/watch?v=PHe0bXAIuk0

Here is a medium post with some screenshots also: https://medium.com/@n0vella/introducing-tubepen-highlight-an...