Fixer Manual Installation Instructions are Not Clear

What????

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2. Download ‘Fixer’ and ‘Upfront’ itself separately (‘Upfront’ is a parent theme and ‘Spirit’ is a child theme – see the wordpress.org codex for more info about child themes)

Then activate ‘Fixer’ in the usual way. Not too bad either!
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How exactly do you manually install Fixer? Can you please explain that again? I'm not sure where Spirit comes into play... But that isn't even the problem because if that is a typo and you meant to put Fixer it is still unclear what is the correct way to install.