chore(package): update stylelint to version 13.3.2

Closes #60

Author: greenkeeper[bot]

package.json

@@ -63,7 +63,7 @@
     "prettier": "~1.5.3",
     "react": "~16.3.1",
     "styled-components": "~3.2.5",
-    "stylelint": "~9.1.3",
+    "stylelint": "~13.3.2",
     "stylelint-config-standard": "~17.0.0",
     "stylelint-processor-styled-components": "~1.3.1",
     "webpack": "~3.10.0"