test: add test script

Author: greatislander

package.json

@@ -14,7 +14,8 @@
     "lint:yml": "eslint \"**/*.yml\"",
     "start": "npm-run-all -l clean -p start:*",
     "start:eleventy": "cross-env NODE_ENV=development eleventy --serve",
-    "prepare": "husky"
+    "prepare": "husky",
+    "test": "echo \"No test specified\" && exit 0"
   },
   "repository": {
     "type": "git",