docs: Add eCHO episode 8: Exploring the Cilium CLI
docs: Add eCHO episode 8: Exploring the Cilium CLI

Signed-off-by: Divine Odazie <a598a625dd88e03367a7f2fc68cf517f61587e21@gmail.com>

cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium,cilium/cilium