GNNLux-v0.1.1

GNNLux GNNLux-v0.1.1

Diff since GNNLux-v0.1.0

Merged pull requests:

• docs improvements (#539) (@CarloLucibello)
• improve GNNLux docs (#542) (@CarloLucibello)
• Add version selector (#543) (@aurorarossi)
• Add Hands On tutorial GNNLux (#549) (@aurorarossi)
• try new approach for building and deploying docs (#552) (@CarloLucibello)

Closed issues:

• [docs] move tutorials to GraphNeuralNetworks.jl package (#533)
• Stack Layers in a HeteroGraphConv Model (#541)
• [lux] add tutorials (#544)