Update package.json

On windows I had a following error:

'ts-node' is not recognized as an internal or external command, operable program or batch file

I fixed it with proposed change

Author: patryk-nather-dragon

package.json

@@ -7,7 +7,7 @@
     "start": "npm run build && node lib/index.js",
     "local": "npm run build:live",
     "build": "tsc -p .",
-    "build:live": "nodemon --watch 'src/**/*.ts' --exec 'ts-node' src/index.ts"
+    "build:live": "nodemon --watch 'src/**/*.ts' --exec \"ts-node\" src/index.ts"
   },
   "repository": {
     "type": "git",