The whole text is the link, the dot is there just to remember you of the link and make it a little more fancy, also the color of the dot is a hint on the kind o

The whole text is the link, the dot is there just to remember you of the link and make it a little more fancy, also the color of the dot is a hint on the kind of the library (if it is an external package, a package from the stdlib of the language or a relative/local module). It is added using the :after CSS pseudo-class and is not a character, so it doesn't change the code line and doesn't add bloat to the page.