BUG: Documentation typo

[Kreyren]

On https://phoenicisorg.github.io/scripts/Develop/script-js/#steamscript there is a typo in .category variable:

[plata]

Can you provide a PR to fix it? It's here: https://github.com/PhoenicisOrg/scripts/blob/master/docs/_docs/Develop/script-js.md

[Kreyren]

@plata Created.

[plata]

Thanks.

[Kreyren]

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