Merge pull request #62 from RalfJung/typo

promotion.md: fix typo

Author: oli-obk

promotion.md

@@ -14,7 +14,7 @@ There are a few different contexts where promotion is beneficial.
 Instead of putting it on the stack, the `3` is allocated in global static memory
 and a reference with lifetime `'static` is provided.  This is essentially an
 automatic transformation turning `&EXPR` into
-`{ const _PROMOTED = &EXPR; EXPR}`, but only if `EXPR` qualifies.
+`{ const _PROMOTED = &EXPR; _PROMOTED }`, but only if `EXPR` qualifies.
 
 Note that promotion happens on the MIR, not on surface-level syntax.  This is
 relevant when discussing e.g. handling of panics caused by overflowing