Add theme archie-solarized

[hcartiaux]

This is a fork from Ahtul Archie Theme, it supports a dark and light mode strictly based on the Solarized color scheme and guidelines (for background and content tones). It also adds support for tables of contents.

This theme is only based on the Solarized color palette, no other color is used. I think it makes it ideal for any development oriented blog which includes code or terminal extracts.

I know it's a fork, but I've not seen a single Solarized-based theme listed on themes.hugo.io, so I thought this one would be a valuable addition. I let you decide if it makes sense to accept this PR.

Homework done:

• your theme.toml is complete
  • name
  • license
  • licenselink
  • description
  • homepage
  • demosite (if one exists)
  • tags
  • features
  • authors/author (depending on whether the theme has multiple or a single author)
  • original (if the theme is a fork)
• you're using absolute paths for images in your README
• you've got appropriate thumbnail and screenshot images
• your theme comes with an appropriate license

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[hugo-sid]

Hello @hcartiaux.

Thanks for submitting this theme. Your observation regarding themes with the Solarized color palette is accurate. But like you mentioned, I wonder whether we can consider this as a new theme all together. Based on your assessment of the changes in your fork, I suggest two options.

Option 1

If the color palette is the only difference from the original theme, consider submitting a PR to the upstream repository to add it.

Option 2

If your fork has notably different features than the original theme, then you may list few arguments in the readme regarding how your fork is different, in which case it can be a candidate for a new theme.

Thank you for your understanding.