message: Add BORDER system prop to BorderBox docs
diff: @@ -13,7 +13,7 @@ BorderBox is a Box component with a border. When no `borderColor` is present, th
  ## System props
  -BorderBox components get `COMMON` and `LAYOUT` system props. Read our [System Props](/system-props) doc page for a full list of available props.
  +BorderBox components get `COMMON`, `LAYOUT` and `BORDER` system props. Read our [System Props](/system-props) doc page for a full list of available props.
  ## Component props
  