message: docs(docs): add missing BIT spacing variant
diff: @@ -14,6 +14,7 @@ The space component can be used in vertical and horizontal order.
  You can refer to a spacing from the theme using `theme.spacings.<SIZE>`.
  +<Spacing spacingName="bit"/>
  <Spacing spacingName="byte"/>
  <Spacing spacingName="kilo"/>
  <Spacing spacingName="mega"/>
  