build(package): mustache

Author: gr2m

package.json

@@ -39,6 +39,7 @@
     "@types/node": "^13.1.0",
     "fetch-mock": "^8.0.0",
     "jest": "^24.9.0",
+    "mustache": "^4.0.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^1.19.1",
     "semantic-release": "^16.0.0",