markdown-it-anchor@5.0.0 generates anchor IDs differently

[yamgent]

Upgrading markdown-it-anchor from 4.0.0 to 5.0.0 causes it to generate the heading anchors differently (because they no longer rely on string@3.3.3 to generate the anchor IDs).

The way they convert the headings to anchor, causes non-alphanumeric characters to be converted to ASCII code equivalent (so for example, "Guideline: Avoid Unsafe Shortcuts" becomes guideline%3A-avoid-unsafe-shortcuts).

We cannot address such anchor IDs in jQuery (the '%' seems to be throwing errors about unrecognized expressions). So the bug in #392 will resurface again, because the fix for that issue uses jQuery to scroll to the correct heading.

We will either need to fix markdown-it-anchor to generate the anchors differently, or find a way around the jQuery problem.

• markbind side - Upgrade markdown-it-anchor to 5.0.0 and fix anchor tag scrolling #469
• vue-strap side - Upgrade anchor ID generation vue-strap#92

<searchbar :data="searchData" placeholder="Search" :on-hit="searchCallback"></searchbar>

<!-- MarkBind needs to be fixed for this to work -->
## Another header,

<!-- vue-strap needs to be fixed for this to work -->
<panel header="## Header:, with comma" expand>
  Panel content
</panel>

[yamgent]

Hints to first time contributors: The fix for vue-strap might be as simple as just upping the anchor package's version (since we are now following the new version's anchor).

[yamgent]

This is a release blocker, upping the priority and removing the "good first issue" tag.