chore(package): update standard to version 8.0.0 (#6)

Author: greenkeeperio-bot

package.json

@@ -29,7 +29,7 @@
     "istanbul": "^0.4.2",
     "istanbul-coveralls": "^1.0.3",
     "semantic-release": "^6.2.0",
-    "standard": "^7.0.0",
+    "standard": "^8.0.0",
     "tap-spec": "^4.0.2",
     "tape": "^4.0.1"
   }