Specify custom page parameters under the params key

[twedifae]

Prerequisites

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• This pull request fixes a bug.
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Description

Specify custom page parameters under the params key in front matter: https://gohugo.io/content-management/front-matter/#parameters

Issues Resolved

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Checklist

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General

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Resources

• If you have changed any SCSS code, run make release to regenerate all CSS files

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