fixed linking to the fork on accident

Author: Lokathor

reference/src/glossary.md

@@ -5,7 +5,7 @@
 (Please note: a full aliasing model for Rust has not yet been constructed, but
 at the moment we can give the following definition. The most developed potential
 aliasing model so far is known as "Stacked Borrows", and can be found
-[here](https://github.com/Lokathor/unsafe-code-guidelines/blob/lokathor/wip/stacked-borrows.md).)
+[here](https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md).)
 
 *Aliasing* is any time one pointer or reference points to a "span" of memory
 that overlaps with the span of another pointer or reference. A span of memory is