Update storybook

Author: nirmaoz

docs/favicon.ico

@@ -14,7 +14,8 @@
     "build": "node_modules/.bin/webpack && npm run bundlewatch",
     "bundlewatch": "bundlewatch --config ./bundlewatch.config.js",
     "storybook": "start-storybook -p 6006",
-    "build-storybook": "del-cli docs && build-storybook -c .storybook -o docs"
+    "build-storybook": "del-cli docs && build-storybook -c .storybook -o docs",
+    "prepublishOnly": "npm run build-storybook"
   },
   "repository": {
     "type": "git",