Flag new_project as private in package.json

This prevents accidental publication of the repository (see
https://docs.npmjs.com/files/package.json#private). It's what
`create-react-app` does with its template apps, and importantly it
suppresses the annoying "missing license field" warning when running
yarn commands inside the examples or when a user builds on the
template project.

Author: luckysori

new_project/package.json

@@ -1,6 +1,7 @@
 {
   "name": "new_project",
   "version": "1.0.0",
+  "private": true,
   "dependencies": {
     "comit-sdk": "^0.7.0"
   }