Docs: stable and nightly are showing broken ^ anchors

[alfiedotwtf]

I've noticed in a couple of places that ^anchors look broken e.g:

http://doc.rust-lang.org/stable/book/the-stack-and-the-heap.html

The docs currently being served show:

"In this case, however, it doesn’t.[moving] When the function is over, we need to free the stack"

Building the docs locally however gives me:

"In this case, however, it doesn’t.1 When the function is over, we need to free the stack"

[killercup]

I think #25601 fixes this. The nightly docs should contain it when the next nightly is built.

[steveklabnik]

Yes, that's correct.

[alfiedotwtf]

Amesome.

Sorry for the dup!