Remove more wordiness

Author: darsnack

src/layers/normalise.jl

@@ -51,8 +51,9 @@ end
 
 Dropout layer. In the forward pass, apply the [`Flux.dropout`](@ref) function on the input.
 
-To apply dropout along an certain dimension (e.g. zeroing out an entire channel's feature map),
-specify the `dims` keyword (i.e. `Dropout(p; dims = 3)` is a 2D dropout layer on WHCN input).
+To apply dropout along certain dimension(s), specify the `dims` keyword.
+e.g. `Dropout(p; dims = 3)` will randomly zero out entire channels on WHCN input
+(also called 2D dropout).
 
 Does nothing to the input once [`Flux.testmode!`](@ref) is `true`.
 """