Update interlayer.jl

Co-Authored-By: Pietro Monticone <38562595+pitmonticone@users.noreply.github.com>
Co-Authored-By: Claudio Moroni <43729990+ClaudMor@users.noreply.github.com>

Author: 3 people

src/subgraphs/interlayer.jl

@@ -15,8 +15,7 @@ An abstract type representing a generic Interlayer.
 abstract type AbstractInterlayer{T,U,G} <: AbstractSubGraph{T,U,G} end
 
 """
-    Interlayer{T<:Integer,U<:Real,G<:AbstractGraph{T}} <:
-AbstractInterlayer{T,U,G}
+    Interlayer{T<:Integer,U<:Real,G<:AbstractGraph{T}} <: AbstractInterlayer{T,U,G}
 
 Represents an interlayer in a `Multilayer(Di)Graph`. 
 """