Include the link mark in the starter kit

[jakecausier]

One issue I was coming across when using this package was that the link mark isn't used in the default starter kit that gets loaded when Editor is instantiated, even though it's available in the Marks folder.

I got around this by using my own StarterKit class with link included (in addOptions and addExtensions), but I was curious why it's not included by default?

[mreduar]

I also had the same problem. I'm curious if every time you instance the Editor you also have to pass your own StarterKit to it.
For example:

(new Editor([
    'extensions' => [
        new StarterKit(),
    ],
]))

Or if you got a way to overwrite it globally.