Clarify `quarto render`will render all formats:

* https://quarto.org/docs/computations/r.html
    
    ```
    quarto render document.qmd # defaults to html
    ```
    ```r
    quarto_render("document.qmd") # defaults to html
   ```
    
    On that page, this also needs updating:
    > When using VS Code there is not yet an integrated Render button for previewing documents. Rather, you should execute the quarto preview command from the VS Code terminal:

* https://quarto.org/docs/computations/python.html#rendering
    ```
    quarto render document.qmd # defaults to html
    ```

* Clarify render button will render one format at a time.
cwickham
2023-02-22T18:36:44Z
cwickham
documentation
v1.4
open
Clarify `quarto render` will render all formats, but Render button will not
https://github.com/quarto-dev/quarto-cli/issues/4462