Fix Deref docs typos

Author: John-Mark Allen

library/core/src/ops/deref.rs

@@ -3,15 +3,15 @@
 /// In addition to being used for explicit dereferencing operations with the
 /// (unary) `*` operator in immutable contexts, `Deref` is also used implicitly
 /// by the compiler in many circumstances. This mechanism is called
-/// ['`Deref` coercion'][coercion]. In mutable contexts, [`DerefMut`] is used and
+/// ["`Deref` coercion"][coercion]. In mutable contexts, [`DerefMut`] is used and
 /// mutable deref coercion similarly occurs.
 ///
 /// **Warning:** Deref coercion is a powerful language feature which has
 /// far-reaching implications for every type that implements `Deref`. The
 /// compiler will silently insert calls to `Deref::deref`. For this reason, one
 /// should be careful about implementing `Deref` and only do so when deref
 /// coercion is desirable. See [below][implementing] for advice on when this is
-/// typeically desired or undesirable.
+/// typically desirable or undesirable.
 ///
 /// Types that implement `Deref` or `DerefMut` are often called "smart
 /// pointers" and the mechanism of deref coercion has been specifically designed
@@ -25,7 +25,7 @@
 /// If `T` implements `Deref<Target = U>`, and `v` is a value of type `T`, then:
 ///
 /// * In immutable contexts, `*v` (where `T` is neither a reference nor a raw
-///   pointer) is equivalent to `*Deref::deref(&x)`.
+///   pointer) is equivalent to `*Deref::deref(&v)`.
 /// * Values of type `&T` are coerced to values of type `&U`
 /// * `T` implicitly implements all the methods of the type `U` which take the
 ///   `&self` receiver.
@@ -96,7 +96,6 @@
 /// [string]: ../../alloc/string/struct.String.html
 /// [rc]: ../../alloc/rc/struct.Rc.html
 /// [cow]: ../../alloc/borrow/enum.Cow.html
-/// [borrow]: core::borrow::Borrow
 ///
 /// # Examples
 ///