docs: rename preset-uno to preset-wind3 (#2100)

Author: Marukome0743

docs/custom/config-unocss.md

@@ -6,7 +6,7 @@
 
 By default, Slidev enables the following presets out-of-box:
 
-- [@unocss/preset-uno](https://unocss.dev/presets/uno) - Tailwind / Windi CSS compatible utilities
+- [@unocss/preset-wind3](https://unocss.dev/presets/wind3) - Tailwind / Windi CSS compatible utilities
 - [@unocss/preset-attributify](https://unocss.dev/presets/attributify) - Attributify mode
 - [@unocss/preset-icons](https://unocss.dev/presets/icons) - Use any icons as class
 - [@unocss/preset-web-fonts](https://unocss.dev/presets/web-fonts) - Use web fonts at ease

docs/guide/index.md

@@ -65,7 +65,6 @@ npm init slidev@latest
 yarn create slidev
 ```
 
-
 ```bash [bun]
 bun create slidev
 ```