npm install @acwars/hexo-reference --save
If Hexo detect automatically all plugins, that's all.
If that is not the case, register the plugin in your _config.yml file :
plugins:
- @acwars/hexo-reference
basic footnote[^1]
here is an inline footnote[^2](inline footnote)
and another one[^3]
and another one[^4]
[^1]: basic footnote content
[^3]: paragraph
footnote
content
[^4]: footnote content with some [markdown](https://en.wikipedia.org/wiki/Markdown)