Support linking to specific sections of a blog post

[tschneidereit]

It'd be great if we could enable anchors for headings in the rendered posts, complete with self-links on the headings themselves, so clicking on a heading adds the relevant fragment.

I don't think pulldown-cmark supports this out of the box, so it might be somewhat tedious to implement :/

[itowlson]

Funnily enough the Fermyon docs site, which is also Bartholomew, does do this automatically. @karthik2804 any idea why it happens on the docs site but not on the blog?

[karthik2804]

@itowlson it is frontend magic sprinkles.
https://github.com/fermyon/developer/blob/4ae2fa1857827da9642d42591596f138cebd877c/static/js/src/modules/utils.js#L84-L105