Update switcher.js

[fulldecent]

No description provided.

[dohliam]

Thanks for this! I like the idea of making the shortcut more discoverable 👍

Since links in title pop-ups can't be clicked (as far as I know), I'm wondering if this message could perhaps be simplified a bit -- maybe just to something like Shortcut: Access key + S. (There must be some established cross-browser, cross-OS way of indicating this, but nothing is coming to mind at the moment...) Thoughts?

[fulldecent]

I think browsers should make these access keys discoverable by default in their own chrome. But people I talk to mostly have no idea what an access key is. Still thinking on this...