Dockerfile: build/run instructions need a /, not :
The image is pulled using tailscale/tailscale:latest, and can be run using tailscale/tailscale
#
# To build the Dockerfile:
#
-# $ docker build -t tailscale:tailscale .
+# $ docker build -t tailscale/tailscale .
#
# To run the tailscaled agent:
#
-# $ docker run -d --name=tailscaled -v /var/lib:/var/lib -v /dev/net/tun:/dev/net/tun --network=host --privileged tailscale:tailscale tailscaled
+# $ docker run -d --name=tailscaled -v /var/lib:/var/lib -v /dev/net/tun:/dev/net/tun --network=host --privileged tailscale/tailscale tailscaled
#
# To then log in:
#
