[Enhancement]: Should we switch from kubectl to oc

[cooktheryan]

What would you like to be added:

Switch the binary of kubectl to oc

Why is this needed:

To stay in line with OpenShift user experience so oc should be used.

[cooktheryan]

This should be done after docs migrates to the new formatting and we deprecate install.sh

[cooktheryan]

/assign cooktheryan

[fzdarsky]

@cooktheryan with microshift-io/microshift-documentation#78 and #481 merged, DYT we can close this one?

[cooktheryan]

good to close