Added package index (cli.js reference)

Author: nuxy

index.js

@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+
+require('./dist/cli');

package.json

@@ -2,7 +2,7 @@
   "name": "@lambda-lambda-lambda/cli",
   "description": "Command-line tool to create a new L³ application.",
   "version": "0.0.3",
-  "main": "dist/cli.js",
+  "main": "index.js",
   "scripts": {
     "compile": "tsc -p ./",
     "lint": "eslint . --ext .ts,.tsx",