expanded install guide for kops with complete steps from scratch
expanded install guide for kops with complete steps from scratch

also fixed a typo labelled --> labeled in metrics.rst

Signed-off-by: Arvind Soni <aa2035ca8af69f38e28457b51c785d448b5c3e2f@gmail.com>

tgraf/cilium,scanf/cilium,tklauser/cilium,eloycoto/cilium,scanf/cilium,cilium/cilium,scanf/cilium,eloycoto/cilium,scanf/cilium,tgraf/cilium,tklauser/cilium,scanf/cilium,cilium-team/cilium,scanf/cilium,tklauser/cilium,cilium-team/cilium,eloycoto/cilium,tgraf/cilium,eloycoto/cilium,michi-covalent/cilium,tgraf/cilium,eloycoto/cilium,tgraf/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,scanf/cilium,eloycoto/cilium,eloycoto/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,tklauser/cilium,michi-covalent/cilium,tgraf/cilium