Sort out consume

Author: willtebbutt

src/copyable_task.jl

@@ -29,8 +29,8 @@ __v::Int = 5
 """
     produce(x)
 
-When run inside a [`TapedTask`](@ref), will immediately yield to the caller, producing value
-`x`.
+When run inside a [`TapedTask`](@ref), will immediately yield to the caller, returning value
+`x`. Users will typically hit this function when calling `consume`.
 
 See also: [`Libtask.consume`](@ref)
 """