adding BOOT_NODE as a veriable for reuse
adding BOOT_NODE as a veriable for reuse

Anchormen/dutch-blockchain-hackathon-project-piggybank,Anchormen/dutch-blockchain-hackathon-project-piggybank,Anchormen/dutch-blockchain-hackathon-project-piggybank,Anchormen/dutch-blockchain-hackathon-project-piggybank