[feat] support obsidian style wikilinks, backlinks, embeds, graph view

[HuakunShen]

What problem will this feature address?

Some custom obsidian markdown syntax is very helpful for building the relationships between documentation pages.

Describe the solution you'd like

Implement wikilink, backlinks, embeds and graph view

Describe alternatives you've considered

Quartz 4

Quartz supports obsidian's syntax: https://quartz.jzhao.xyz/

Starlight Obsidian

This astro starlight plugin is almost perfect

https://github.com/HiDeoo/starlight-obsidian

Obsidian Digital Garden

https://dg-docs.ole.dev/

Additional context

Here is a remark plugin for wiki links

https://github.com/datopian/portaljs/tree/main/packages/remark-wiki-link

[fuma-nama]

Not planning to support obsidian style markdown, community contribution is welcome