Add new theme SoSimple

[Lhcfl]

Check List

Please read and check followings before submitting a PR.

• [x] I want to publish my theme on Hexo official website.

  • [x] I have read the theme publishing doc.
  • [x] name is unique.
  • [x] link URL is correct.
  • [x] preview URL is correct.
  • [x] preview URL web site is rendered correctly.
  • [x] Add a screenshot to source/themes/screenshots.
  • [x] Screenshot filename is same as value of name.
  • [x] Screenshot size is 800 * 500.
  • [x] Screenshot file format is png.

• [ ] I want to publish my plugin on Hexo official website.

  • [ ] I have read the plugin publishing doc.
  • [ ] name is unique.
  • [ ] link URL is correct.

• [ ] Others (Update, fix, translation, etc...)

  • Languages:
  • [ ] en English

[github-actions[bot]]

Theme thumbnails validation completed.