packaging updates

package.json

@@ -23,10 +23,10 @@
     "altcoin",
     "cryptocurrency"
   ],
-  "main": "dist/mjs/repertory-js.mjs",
-  "module": "dist/mjs/repertory-js.mjs",
+  "main": "dist/repertory-js.mjs",
+  "module": "dist/repertory-js.mjs",
   "files": [
-    "dist/mjs"
+    "dist"
   ],
   "scripts": {
     "build": "rollup -c",
@@ -56,7 +56,6 @@
     "jest": "^26.6.3",
     "rollup": "^2.50.0",
     "rollup-plugin-eslint": "^7.0.0",
-    "rollup-plugin-node-polyfills": "^0.2.1",
     "rollup-plugin-terser": "^7.0.2"
   }
 }