Doc can not execute. '--name' is removed.
see:https://github.com/openfaas/faas-cli/commit/e0973014146164fbefae3bbd34d644e921b2ae98#diff-6e522d40e6848a6eeeb12b0ab50cb97d



Signed-off-by: eiji.ienaga <eiji.ienaga@gmail.com>