Update README and remove obsolete router-image and default ns

1 job for !30 with jack-cleanup in 1 minute and 54 seconds (queued for 3 seconds)
merge request
Name Stage Failure
failed
Build Topic Branch Build
Using docker image sha256:0cecfefe921f22fc898f7a0055358380c8870ab6f05b01999367911714fe9d00 for docker:19.03.1 with digest docker@sha256:2dcf87c9893b05ab815880e3d223cd6976c388a6f6697de10e90523255259ca4 ...
$ export DATE=`date -u +%Y.%m.%dT%H-%M-%SZ`
$ export TAG=${TAG:-"RELEASE".$DATE}
$ export CONTEXT=${CONTEXT:-$CI_PROJECT_DIR}
$ export DOCKERFILE_PATH=${DOCKERFILE_PATH:-Dockerfile}
$ export DOCKERFILE=$CONTEXT/$DOCKERFILE_PATH # collapsed multi-line command
Dockerfile not found, please set both CONTEXT and DOCKERFILE_PATH properly
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1