Enhance documentation about hinode HOT 2 CLOSED

I moved the content from the guide to the language configuration and made a reference to it, so it can be found better.

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I think it would be good to add to the Hinode documentation, how to disable multi language support. It took me some time to figure out the Hugo pages had that info (I know you did link to that page).
Even though Dutch is my native language, it is too much work to support it next to English, so I wanted to disable the drop-down. The missing information would be to add disableLanguages = ['nl'] to config.toml, so that only one language is left.
This would probably go hand in hand with the defaultContentLanguageInSubdir = false setting and contentDir = "content" in languages.toml. The latter option only if you do not want want to keep the content in the content/en folder.

Maybe there is another option to disable it, but I could not figure it out (besides hacking the navbar partial).

Update: I see there is information about this in the guide about documentation.

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