Fix link to Gradient

Author: logankilpatrick

src/functor.jl

@@ -54,7 +54,7 @@ end
 
 Given a model or specific layers from a model, create a `Params` object pointing to its trainable parameters.
 
-This can be used with [`gradient`](@ref), or as input to the [`Flux.train!`](@ref Flux.train!) function.
+This can be used with the `gradient` function, see [Taking Gradients](@ref), or as input to the [`Flux.train!`](@ref Flux.train!) function.
 
 The behaviour of `params` on custom types can be customized using [`Functor.@functor`](@ref) or [`Flux.trainable`](@ref).