docs(reference): local configuration addwifisettings (#327)

* docs(reference): local configuration addwifisettings

* docs(reference): local wifi config first pass

* docs(reference): sectioning and update cmds

* docs(reference): change flag names

* docs(reference): add wpa

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Co-authored-by: Tim Shockley <[email protected]>
Co-authored-by: bryan-wendlandt <[email protected]>
Co-authored-by: Bryan Wendlandt <[email protected]>