Fix example commands in README for quick-start

Fix example setup in README:

1. The zip command arguments are the wrong way around, zip file then files to upload
2. After using the test script to upload the module, I now receive:

{"status": "Error", "message": "Namespace name is invalid"}

3. The source of the zip file to upload should be relative to the current dir, since it was uploaded to parent directory.
4. Consider using a temporary directory to create zip file