### Bug description

I am struggling to label multiple equations placed within `$$ \begin{align} ... \end{align} $$`. 

This works flawlessly...
```
$$
\begin{align}
a &= 0+1 \\
b &= 2+3 \\
c &= 4+5
\end{align}
$$ {#eq-abc}

see @eq-abc.
```

...but neither of these work:

```
$$
\begin{align}
a &= 0+1 \label{eq:a} \\
b &= 2+3 \label{eq-c} \\
c &= 4+5 {#eq-d}
\end{align}
$$
```

I tried various other versions of Quarto and/or LaTeX syntax, but couldn't achieve the desired results: To have multiple numbered (and cross-referenceable) equations placed within an align-block. 

Any suggestions would be greatly appreciated! And, it would be nice to have such an example included in the Equations sections of the Technical Writing documentation [here](https://quarto.org/docs/visual-editor/technical.html).

**Software:**
- Quarto version 1.1.168
- macOS Monterey version 12.2
- RStudio IDE version "Prairie Trillium" Release  
(1db809b8, 2022-05-16) for macOS

### Checklist

- [X] Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] Please [format your issue](https://yihui.org/issue/#please-format-your-issue-correctly) so it is easier for us to read the bug report.
- [X] Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] Please document the operating system you're running. If on Linux, please provide the specific distribution.
cscheid
2022-09-03T09:26:30Z
HelenaLC
bug crossref
v1.4
open
referencing equations inside `$$ \begin{align}` environment
https://github.com/quarto-dev/quarto-cli/issues/2275