May I extend the suggestion? Pugs tests have been using a nice format to link to a specific section, or even line, in the spec. There we use POD-compatible syntax like:

L<S05/"Hypothetical variables" /backtracks past the closure/>

This is a link to an arbitrary line, and won't be supported by regular HTML. But we can do section-level granularity easy, I think, if we have an appropriately anchored version somewhere. So this is nice and can probably be made to work easily:

[S05/"Hypothetical variables"]