Update files section

Author: pawelniewie

package.json

@@ -7,6 +7,10 @@
   "bin": {
     "funcli": "./bin/funcli.js"
   },
+  "files": [
+    "bin/",
+    "src/"
+  ],
   "scripts": {
     "test": "node --test test/**/*.test.js",
     "lint": "eslint src test",