Update README.md

Author: CarloLucibello

README.md

@@ -34,12 +34,13 @@ Both **GraphNeuralNetworks.jl** and **GNNLux.jl** support the following features
 
 ## Installation
 
-**GraphNeuralNetworks.jl**, **GNNlib.jl**, and **GNNGraphs.jl** are registered Julia packages. You can install them easily through the package manager:
+**GraphNeuralNetworks.jl**, **GNNLux.jl**, **GNNlib.jl**, and **GNNGraphs.jl** are registered Julia packages. You can install them easily through the package manager:
 
 ```julia
 pkg> add GraphNeuralNetworks
 ```
 
+
 ## Usage
 
 Usage examples can be found in the [examples folder](https://github.com/JuliaGraphs/GraphNeuralNetworks.jl/tree/master/GraphNeuralNetworks/examples) and the [notebooks folder](https://github.com/JuliaGraphs/GraphNeuralNetworks.jl/tree/master/GraphNeuralNetworks/notebooks).