buttons in a grid

[mluerig]

Why do I get a warning when I put buttons in a grid (WARNING: All children of a 'grid-row' should be 'grid-item' [design.grid]) - it appears to be working. Can this be a feature? Would be great to have buttons next to each other...

::::{grid} 3
:gutter: 2

```{button-ref} page1
:color: primary
:shadow:
:expand:

blah blah
´´´

```{button-ref} page2
:color: primary
:shadow:
:expand:

blah blah
´´´
::::