add Docker Macvlan network documentation

[Strubbl]

I started a short documentation for the Docker Macvlan setup for teddycloud. I was not able to test the generation with Hugo to check if everything works, because i only have hugo v0.140.0 installed, which errors:

$ hugo server
WARN  DEPRECATED: Kind "taxonomyterm" used in disableKinds is deprecated, use "taxonomy" instead.
Watching for changes in $HOME/toniebox-reverse-engineering.github.io/{archetypes,assets,content,static,themes}
Watching for config changes in $HOME/toniebox-reverse-engineering.github.io/hugo.toml
Start building sites … 
hugo v0.140.0+extended linux/amd64 BuildDate=unknown

ERROR deprecated: resources.ToCSS was deprecated in Hugo v0.128.0 and will be removed in Hugo 0.141.0. Use css.Sass instead.
WARN  Raw HTML omitted while rendering "$HOME/toniebox-reverse-engineering.github.io/content/docs/wiki/general/audio-file-format.md"; see https://gohugo.io/getting-started/configuration-markup/#rendererunsafe
You can suppress this warning by adding the following to your site configuration:
ignoreLogs = ['warning-goldmark-raw-html']
WARN  Raw HTML omitted while rendering "$HOME/toniebox-reverse-engineering.github.io/content/docs/tools/teddyCloud/setup/flash-ca/cc3200.md"; see https://gohugo.io/getting-started/configuration-markup/#rendererunsafe
You can suppress this warning by adding the following to your site configuration:
ignoreLogs = ['warning-goldmark-raw-html']
ERROR deprecated: .Sites.First was deprecated in Hugo v0.127.0 and will be removed in Hugo 0.141.0. Use .Sites.Default instead.
ERROR deprecated: .Site.IsMultiLingual was deprecated in Hugo v0.124.0 and will be removed in Hugo 0.141.0. Use hugo.IsMultilingual instead.
Built in 130 ms
Error: error building site: logged 3 error(s)