Improve doc for deepmap

Author: oschulz

src/functions.jl

@@ -15,10 +15,11 @@ nestedmap2(f::Base.Callable, A::AbstractArray{<:AbstractArray{T,M},N}) where {T,
 
 
 """
-    deepmap(f::Base.Callable, A::AbstractArray)
+    deepmap(f::Base.Callable, x::Any)
     deepmap(f::Base.Callable, A::AbstractArray{<:AbstractArray{<:...}})
 
-Applies `map` at the deepest possible layer of nested arrays.
+Applies `map` at the deepest possible layer of nested arrays. If `A` is not
+a nested array, `deepmap` behaves identical to `Base.map`.
 """
 function deepmap end
 export deepmap