message: Update pages/components/docs/system-props.md
diff: @@ -14,7 +14,7 @@ All Primer Components have access to the `as` prop, provided by [styled-componen
  For example, if you wanted to add some flex utilities to the `Text` component, you could do:
  ```.jsx
  -<Text as='Flex'>Hello!</Text>
  +<Text as={Flex}>Hello!</Text>
  ```
  