mermaid graphs not working with gitGraph type

[lschierer]

The following document works as expected:

 +++
 title = "History"
 date = 2022-07-26T16:13:48-04:00
 +++
 
 ```mermaid
 graph TD
   commit1 --> commit2
   commit2 --> commit3
```
 
 [^modeline]: # vim: shiftwidth=2:tabstop=2:expandtab

this alternate document displays just the title and an otherwise blank page.

+++
title = "History"
date = 2022-07-26T16:13:48-04:00
+++

```mermaid
gitGraph 
  commit 
  commit
  commit
```

[^modeline]: # vim: shiftwidth=2:tabstop=2:expandtab

as best I can tell, this implementation of mermaid does not support the gitGraph graph type. If this is a true statement, consider that a feature request. If it is something I am doing wrong, please consider it a bug against the documentation (please give an example of how).

I am using docy by checking it out into my hugo themes directory as a sub repository. I am currently at commit 1d126ab.

Thanks!!

[LisaFC]

@gwatts you did the Mermaid integration if I remember correctly, do you have time to take a look at this?

[gwatts]

Opened PR #1138 to upgrade Mermaid to the latest version; seems to fix the issue based on some quick local tests

[LisaFC]

Thanks Gareth!