message: added anchor for react hooks
diff: | namespace? | <code>string</code> | A container for a set of metafields. You need to define a custom namespace for your metafields to distinguish them from the metafields used by other apps. This must be between 2 and 20 characters in length (inclusive). |
  | key? | <code>string</code> | The name of the metafield. It must be between 3 and 30 characters in length (inclusive). |
  +<a name="reacthooks"></a>
  +
  ### React Hooks
  A collection of [React hooks](https://reactjs.org/docs/hooks-intro.html) are provided to make it easy to update your UI when shopify data has changed.
  