Fix IntoFuture link

Author: ehuss

Diff for: src/expressions/await-expr.md

@@ -7,7 +7,7 @@
 An `await` expression is a syntactic construct for suspending a computation
 provided by an implementation of `std::future::IntoFuture` until the given
 future is ready to produce a value.
-The syntax for an await expression is an expression with a type that implements the [IntoFuture] trait, called the *future operand*, then the token `.`, and then the `await` keyword.
+The syntax for an await expression is an expression with a type that implements the [`IntoFuture`] trait, called the *future operand*, then the token `.`, and then the `await` keyword.
 Await expressions are legal only within an [async context], like an [`async fn`] or an [`async` block].
 
 More specifically, an await expression has the following effect.