Apply suggestions from PR

Author: chorman0773

src/expressions.md

@@ -229,7 +229,7 @@ The following expressions can be mutable place expression contexts:
 * [Temporary values].
 * [Fields][field]: this evaluates the subexpression in a mutable place expression context.
 * [Dereferences][deref] of a `*mut T` pointer.
-* Dereference of a movable place, with type `&mut T`. This includes variables and their fields, as well as temporaries. Note: This is an exception to the requirement of the next rule.
+* Dereference of a [movable place][expr.move.movable-place] with type `&mut T`. This includes variables and their fields, as well as temporaries. Note: This is an exception to the requirement of the next rule.
 * Dereferences of a type that implements `DerefMut`: this then requires that the value being dereferenced is evaluated in a mutable place expression context.
 * [Array indexing] of a type that implements `IndexMut`: this then evaluates the value being indexed, but not the index, in mutable place expression context.