Add marked dependency

package.json

@@ -15,6 +15,7 @@
     "cross-env": "^3.1.4",
     "express": "^4.14.1",
     "express-session": "^1.15.1",
+    "marked": "^0.3.6",
     "mysql": "^2.13.0",
     "sequelize": "^3.30.0",
     "sequelize-cli": "^2.5.1"