Merge pull request #28721 from rxwei/differentiable-programming-doc-fix

Author: swift-ci

docs/DifferentiableProgramming.md

@@ -2016,10 +2016,11 @@ differentiating either one will provide derivatives with respect to parameters
 `T` and `U`. Here are some examples of first-order function types and their
 corresponding curried function types:
 
-| First-order function type                 | Curried function type                           |
-| @differentiable (T, U) -> V               | @differentiable (T) -> @differentiable (U) -> V |
-| @differentiable (T, @noDerivative U) -> V | @differentiable (T) -> (U) -> V                 |
-| @differentiable (@noDerivative T, U) -> V | (T) -> @differentiable (U) -> V                 |
+| First-order function type                   | Curried function type                             |
+|---------------------------------------------|---------------------------------------------------|
+| `@differentiable (T, U) -> V`               | `@differentiable (T) -> @differentiable (U) -> V` |
+| `@differentiable (T, @noDerivative U) -> V` | `@differentiable (T) -> (U) -> V`                 |
+| `@differentiable (@noDerivative T, U) -> V` | `(T) -> @differentiable (U) -> V`                 |
 
 A curried differentiable function can be formed like any curried
 non-differentiable function in Swift.
@@ -2540,9 +2541,7 @@ func valueWithDifferential<T: FloatingPoint, U: Differentiable>(
 
 To differentiate `valueWithDifferential`, we need to be able to differentiate
 its return value, a tuple of the original value and the differential, with
-respect to its `x` argument. Since the return type contains a function,
-[differentiation of higher-order functions](#differentiation-of-higher-order-functions)
-is required for differentiating this differential operator.
+respect to its `x` argument.
 
 A kneejerk solution is to differentiate derivative functions generated by the
 differentiation transform at compile-time, but this leads to problems. For