add theme (#348)

docs/kagi/features/custom-css.md

@@ -10,13 +10,13 @@ Use the `no_css` query parameter (for example, `kagi.com/search?q=test&no_css`
 
 Our users have built and shared the following themes:
 
+- [Enhanced Theme](https://gist.github.com/sefidel/ffb677da037e4d6951949a110132fe80) by [sefidel](https://gist.github.com/sefidel)
 - [Brave Theme](https://gist.github.com/httpjamesm/a9c6b3b115cb09c483e53ad5f5ec9b99) by [http.james](https://httpjames.space/)
 - [Cozy Theme](https://gist.github.com/jamesjlyons/26682982319ca84b7bee991eb158ce49) by [James Lyons](https://jameslyons.design)
 - [Dark Mustard](https://gist.github.com/joshellington/51765a15d8f780089619b638fc6aea6b) by Josh Ellington
 - [Familiar Dark](https://github.com/exsesx/kagi-dark-theme) by Oleh Vanin
 - [Google Style Dark](https://gist.github.com/neilio/c2c3495ff16c0a0401f4cf630438e1b3) by Neil Lee
-- [Gruvbox Material Light](https://github.com/mauromotion/Kagi-Gruvbox-Material-themes/blob/main/kagi-grubox-material-medium-light.css) by mmmotion
-- [Gruvbox Material Dark](https://github.com/mauromotion/Kagi-Gruvbox-Material-themes/blob/main/kagi-grubox-material-medium-dark.css) by mmmotion
+- [Gruvbox Material Light](https://github.com/mauromotion/Kagi-Gruvbox-Material-themes/blob/main/kagi-grubox-material-medium-light.css) and [Gruvbox Material Dark](https://github.com/mauromotion/Kagi-Gruvbox-Material-themes/blob/main/kagi-grubox-material-medium-dark.css) by mmmotion
 - [Minimal Fav Color](https://github.com/MattRangel/kagi-search-custom-css) by [Matt Rangel](https://github.com/MattRangel)
 - [Monokai Hack](https://gist.github.com/maxpl01t/7de6e4716e50d52f4ec14aa01e2047e0) by maxpl01t
 - [Solarized](https://gist.github.com/RoarkGit/2074f3b71efdb55efde608627179ed54) by Liam Galt