message: update StateLabel docs
diff: @@ -5,7 +5,7 @@ Use StateLabel components to show the status of an issue or pull request.
  ## Default example
  ```.jsx
  - <StateLabel scheme="open">Open</StateLabel>
  + <StateLabel scheme="issueOpened">Open</StateLabel>
  ```
  ## System props
  @@ -17,6 +17,6 @@ StateLabel components get `COMMON` system props. Read our [System Props](/compon
  | Name | Type | Default | Description |
  | :- | :- | :-: | :- |
  | small | Boolean | | Used to create a smaller version of the default StateLabel |
  -| scheme | String | | Can be one of `open`, `closed`, or `merged`.
  +| scheme | String | | Can be one of `issueOpened`, `issueClosed`, `pullOpened`, `pullClosed` or `pullMerged`.
  export const meta = {displayName: 'StateLabel'}
  