chore: ran yarn format (#14019)

wardpeet · web-flow · commit 8955e1990adf · 2019-05-14T09:08:17.000+02:00
diff --git a/packages/gatsby-plugin-google-analytics/README.md b/packages/gatsby-plugin-google-analytics/README.md
@@ -65,6 +65,7 @@ export default () => {
 ```
 
 ## Options
+
 ### `trackingId`
 
 Here you place your Google Analytics tracking id.
