make image tag push - "No rule to make target 'tag'

[David Lee]

The docs on how to tag & push either are incorrect or non-obvious
Looking at the makefile its not clear either.

I make perforce-p4web easily (thanks !)

make perforce-p4web

But the make example for pushing doesnt work. Not a big problem as I know the docker commands,

DOCKER_REPO=insertedmyrpo make perforce-p4web tag push

Does the image build then fails

Step 11 : CMD /usr/bin/p4web -b -U perforce -w 8080
 ---> Using cache
 ---> 8a6aa52c8256
Successfully built 8a6aa52c8256
make: *** No rule to make target `tag'.  Stop.