fixed and refined documentation about k8s service renderer using srv6 renderer
fixed and refined documentation about k8s service renderer using srv6 renderer

Signed-off-by: Filip Gschwandtner <8d9a3eb06cdc27e911f7eda75e0d2498e8321f79@pantheon.tech>

brecode/vpp,rastislavszabo/vpp,brecode/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,brecode/vpp,brecode/vpp,rastislavszabo/vpp,brecode/vpp