More improvements

[leomoon]

• fixes php 8.1 null value warning
• Enables table of content and typographer in ParsedownExtended
  These two are disabled by default.
  • Add table of content to a doc: [toc]
    https://benjaminhoegh.github.io/ParsedownExtended/docs/table%20of%20content.html
  • Typographer replaces some predefined characters:
    https://benjaminhoegh.github.io/ParsedownExtended/docs/typographer.html
• adds mermaid 9.4.3 to support different kind of charts:
  Mermaid supports:
  • sequence diagrams
  • flowcharts
  • Gantt charts
  • class and state diagrams
  • pie charts
    Example chart:

    graph TD;
        A-->B;
        A-->C;
        B-->D;
        C-->D;
    

    Loading
• adds nginx configuration to README
• adds persian language

[Zavy86]

a curiosity.
are you using wikidocs on some public site?

[Zavy86]

for mermaid what is the tag?

[leomoon]

I have WikiDocs local only accessed via wiki.local.
so mermaid would be a code tag with mermaid like:
```mermaid
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
```

[leomoon]

You can also do mind maps like (add mermaid to the code tag):

mindmap
  root((mindmap))
    Origins
      Long history
      ::icon(fa fa-book)
      Popularisation
        British popular psychology author Tony Buzan
    Research
      On effectiveness<br/>and features
      On Automatic creation
        Uses
            Creative techniques
            Strategic planning
            Argument mapping
    Tools
      Pen and paper
      Mermaid

[Zavy86]

very good https://demo.wikidocs.it/aaaa

[leomoon]

And supports both dark and light themes. :D

[Zavy86]

end of the month.. release 1.0.0! :)