fix: added chromatic to package.json

Author: DaniAkash

example/package.json

@@ -12,7 +12,8 @@
     "test": "jest",
     "storybook": "start-storybook -p 6006",
     "build-storybook": "build-storybook -s public",
-    "deploy-storybook": "storybook-to-ghpages"
+    "deploy-storybook": "storybook-to-ghpages",
+    "chromatic": "npx chromatic"
   },
   "dependencies": {
     "expo": "^38.0.0",