Unfork `kube-flannel.yaml`

[Akihiro Suda]

usernetes/manifests/kube-flannel.yml

Lines 1 to 4 in 13c4634

 # <USERNETES> 
 # Forked from https://github.com/flannel-io/flannel/releases/download/v0.22.2/kube-flannel.yml , 
 # to specify a custom `--public-ip` value via `/u7s-flanneld-wrapper.sh. 
 # </USERNETES> 

TODO: submit a PR to Flannel to support loading public-ip from a file