🚀 Set up documentation template repo

[bennymi]

Like Vitepress, it should be a good starter for creating a documentation page. We can call the template a-to-docs 😛

• [ ] mdsvex for markdown support with shiki-twodash
• [ ] navbar
• [ ] table of contents
• [ ] left side navigation bar
• [ ] mobile friendly

Examples

• https://nextra.site/
• https://vitepress.dev/
• https://sveltepress.site/guide/themes/

[bennymi]

Actually Sveltepress is really nice so I don't think this template is necessary.