Adds rename to bin section

Author: mateja176

package.json

@@ -8,7 +8,11 @@
     "test:watch": "jest --watch",
     "build": "tsc",
     "lint": "tslint",
-    "run": "ts-node src/index.ts"
+    "run": "ts-node src/index.ts",
+    "rename": "cd playground && ../src/rename -m '(.+).js' -r '$1.ts' && cd .."
+  },
+  "bin": {
+    "rename": "./src/rename.ts"
   },
   "keywords": [],
   "author": "",