@trusktr --

Accessibility should absolutely be a concern for the core team, and we can and should do better moving forward. See #494 (comment) for related feedback.

I'm guessing that the above recommendation was made based on the assumption that adding a skip link meant that the link would be visible on all sites and, since many people may not want that, users could "opt-in" by either installing the plugin or not. Again, just a guess. Fortunately, this isn't the case. We can add a "Skip Navigation" link to the top of the sidebar that is hidden by default but becomes visible when it receives focus.

Let's work through the problem in #494 and see where we land. I think this is a good feature to add and accessibility features like this should be part of docsify core. That said, I'm not sure this is the sort of thing we should add to v4. A significantly improved a11y experience would also be a pretty big achievement for v5.

Note: I've added an accessibility label so we can easily filter the issues list.