Update package.json

Author: RemiixInc

package.json

@@ -7,6 +7,9 @@
     "puppeteer-core": "13.1.2",
     "express": "^4.17.1"
   },
+  "devDependencies": {
+    "typescript": "4.1.5"
+  },
   "engines": {
     "node": "14.x"
   }