feat(ds.dev): example is not a shared component

packages/freesewing.shared/components/mdx/example/Circle/index.js

@@ -0,0 +1,12 @@
+import React from 'react'
+
+const Circle = (props) => (
+  <circle
+    cx={props.point.x}
+    cy={props.point.y}
+    r={props.point.attributes.get('data-circle')}
+    {...props.point.attributes.asPropsIfPrefixIs('data-circle-')}
+  />
+)
+
+export default Circle