feat: update mermaid

[dkarter]

Adds new features such as gitGraph! :)

In Github Markdown:

gitGraph
  commit
  commit
  branch develop
  checkout develop
  commit
  commit
  branch feat/do-thing
  checkout feat/do-thing
  commit
  commit
  checkout develop
  merge feat/do-thing
  checkout main
  merge develop tag: "v1.0.0"

Loading

In Inkdrop:

---

Reason for major version update of Mermaid:

Moving the gitGraph from experimental alpha status to a fully supported diagram type which handles theming and directives. The grammar has changed slightly from the alpha version, and no longer supports reset operations and some internal fast-forwarding has been removed for simplicity. Some few GitGraphs based on the alpha version might break with the update. This is the reason for the major version number update.

— https://github.com/mermaid-js/mermaid/releases/tag/9.0.0

[craftzdog]

Thanks!