Remove `--config` as a global flag about tk8 HOT 2 CLOSED

➜  /tmp/tk8test ./tk8

Command line application to deploy kubernetes using the pure kubespray distribution.
It can also be used to install addons like Load Testing As A Service, zipkin and prometheus

Usage:
  tk8 [command]

Available Commands:
  addon       Manage addon packages
  cluster     Used to create kubernetes cluster on cloud infrastructures
  completion  Generates shell autocompletion script for either bash or zsh.
  help        Help about any command
  version     Print the version of TK8

Flags:
      --config string   uses the config.yaml
  -h, --help            help for tk8
  -t, --toggle          Help message for toggle

Use "tk8 [command] --help" for more information about a command.

➜  /tmp/tk8test ./tk8 addon
Error: requires at least 1 arg(s), only received 0
Usage:
  tk8 addon [command] [flags]
  tk8 addon [command]

Available Commands:
  create      create a new kubernetes addon packages on your local machine for development
  destroy     Destroy a running addon on your kubernetes cluster
  get         Get a addon to your local machine
  install     Install a addon on your kubernetes cluster

Flags:
  -h, --help                help for addon
      --kubeconfig string   kubeconfig path

Global Flags:
      --config string   uses the config.yaml

Use "tk8 addon [command] --help" for more information about a command.