rmarkdown cross-referencing

[fawda123]

Hi there, great package! I'm curious if you'll offer support for cross-referencing tables in RMarkdown documents rendered in HTML. Something like this perhaps:

Here's a cross-reference for Table \@ref(tab:mytable).

```{r}
reactable(iris, label = "mytable")

[glin]

Interesting, I didn't know you could cross-reference tables until now. Is that a bookdown-specific feature?

I looked up how it's done for other HTML widgets like DT, and found this: https://github.com/rstudio/bookdown/issues/313. Looks like there are a couple options for cross-referencing outside of the table.

For example, you could use a figure instead:

Refer to table \@ref(fig:mytbl-1)

```{r mytbl-1, fig.cap="This is my table"}
reactable::reactable(head(iris))

Or manually add a caption with the special label:

Refer to table \@ref(tab:mytbl-2)

(#tab:mytbl-2) This is my table

reactable::reactable(head(iris))

Here are a couple more ways I played around with: https://gist.github.com/glin/955b5f95fbd13b042ce39d475a1b49ff

In the future, it'll likely be possible to add a caption within the table. But I'm not sure about specifically supporting the `(#tab:label)` label when it's so specific to bookdown. Maybe something like this would work:
```r
reactable(iris, caption = "(#tab:mytable) This is my table")

[fawda123]

Awesome, thanks for the options. And you're correct, I was using bookdown::html_document2. Sorry for not making that clear.

I ended up going with the manual table caption with reference:

## Manual table caption

Refer to table \@ref(tab:mytbl-2)

<caption>(#tab:mytbl-2) This is my table</caption>

```{r}
reactable::reactable(head(iris))

I agree though, it would be super cool to have a caption argument where you can specify the label.  Thanks!