message: docs(css-variables): clarify section name
diff: @@ -92,7 +92,7 @@ const color = el.style.getPropertyValue('--charcoal');
  ### Component Variables
  -Ionic provides variables that exist at the component level, such as `--background` and `--color`. For a list of the custom properties a component accepts, view the `Custom Properties` section of its [API reference](/docs/api/). For example, see the [Button Custom Properties](/docs/api/button#css-custom-properties).
  +Ionic provides variables that exist at the component level, such as `--background` and `--color`. For a list of the custom properties a component accepts, view the `CSS Custom Properties` section of its [API reference](/docs/api/). For example, see the [Button CSS Custom Properties](/docs/api/button#css-custom-properties).
  ### Global Variables
  