* Added a complete description of the apply command

added wksctl apply --help + flags

* added ```console```

* moved ```console above wksctl apply --help

* Switches context to newly created cluster by default, except if
  if --use-context=false is passed.

* If --artifact-directory is not passed, and ~/.kube/config file
  exists, the context is merged in the existing file. If ~/.kube/config
  doesn't exist, it creates it.

* Sets SilenceUsage to true in kubeconfig root command, to avoid showing
  the usage message in the case of error.
  Relevant issue: https://github.com/spf13/cobra/issues/340

* Removes printing of error in Execute() of kubeconfig command
  to avoid printing twice an error message.
  Relevant issue: https://github.com/spf13/cobra/issues/304



* Updates docs in `wksctl kubeconfig` part
Signed-off-by: Dinos Kousidis <dinos@weave.works>

* Update serve docs url

* update copyright year

* Update footloose instructions.

* Fix grammar and new firekube page

* Add firekube page to the index

* Fix typo on Firekube instructions
Co-Authored-By: Kingdon Barrett <kbarret8@nd.edu>

* Update make serve-docs URL.
Co-Authored-By: Dimitri Mitropoulos <dimitrimitropoulos@gmail.com>
Co-authored-by: Kingdon Barrett <kbarret8@nd.edu>
Co-authored-by: Dimitri Mitropoulos <dimitrimitropoulos@gmail.com>

Co-authored-by: giannicarabelli <59476365+giannicarabelli@users.noreply.github.com>
Co-authored-by: Mark Emeis <palemtnrider@gmail.com>

Co-Authored-By: Dimitri Mitropoulos <dimitrimitropoulos@gmail.com>