fix package.json

Author: Josias Montag

.npmignore

@@ -1,6 +1,6 @@
 {
   "name": "cloudconvert",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "license": "MIT",
   "description": "Official Node.js SDK for the CloudConvert API",
   "homepage": "https://github.com/cloudconvert/cloudconvert-node",
@@ -30,7 +30,8 @@
     "typescript": "^3.9.6"
   },
   "files": [
-    "lib/"
+    "lib/",
+    "built/"
   ],
   "scripts": {
     "prepare": "npm run build",