Generate link to Local in hir::Let documentation

compiler/rustc_hir/src/hir.rs

@@ -1253,11 +1253,11 @@ pub struct Arm<'hir> {
     pub body: &'hir Expr<'hir>,
 }
 
-/// Represents a `let <pat>[: <ty>] = <expr>` expression (not a Local), occurring in an `if-let` or
-/// `let-else`, evaluating to a boolean. Typically the pattern is refutable.
+/// Represents a `let <pat>[: <ty>] = <expr>` expression (not a [`Local`]), occurring in an `if-let`
+/// or `let-else`, evaluating to a boolean. Typically the pattern is refutable.
 ///
-/// In an if-let, imagine it as `if (let <pat> = <expr>) { ... }`; in a let-else, it is part of the
-/// desugaring to if-let. Only let-else supports the type annotation at present.
+/// In an `if let`, imagine it as `if (let <pat> = <expr>) { ... }`; in a let-else, it is part of
+/// the desugaring to if-let. Only let-else supports the type annotation at present.
 #[derive(Debug, Clone, Copy, HashStable_Generic)]
 pub struct Let<'hir> {
     pub span: Span,