Update src/functor.jl

Co-authored-by: Brian Chen <ToucheSir@users.noreply.github.com>

Author: logankilpatrick

src/functor.jl

@@ -50,6 +50,7 @@ end
 
 """
     params(model)
+    params(layers...)
 
 Given a model or specific layers from a model, create a `Params` object pointing to its trainable parameters.