Some small changes to get the examples so that they run without error for me. Improve consistency of presentation of the examples. Fix some typos Signed-off-by: kevinfeyrer <kevin.feyrer@btinternet.com> Update vlan-networks.md Restore "ip" accidentally removed Signed-off-by: kevinfeyrer <kevin.feyrer@btinternet.com> Update vlan-networks.md Change prompt from container "$$" to host "$" Signed-off-by: kevinfeyrer <kevin.feyrer@btinternet.com> Update vlan-networks.md Some changes suggested by cpuguy83 and thaJeztah Signed-off-by: kevinfeyrer <kevin.feyrer@btinternet.com> Upstream-commit: 6ea36d7d48a41225c8573ef649320c1a414b8995 Component: engine