Change install of tailscale

[gbraad]

notebooks/setup/tailscale.ipynb

Lines 33 to 36 in e401651

	"!curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/bionic.gpg | sudo apt-key add -\n",
	"!curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/bionic.list | sudo tee /etc/apt/sources.list.d/tailscale.list\n",
	"!sudo apt-get update\n",
	"!sudo apt-get install -y tailscale\n",

!curl -fsSL https://tailscale.com/install.sh | sh