message: [RNP] Fix URL.
diff: _emissionLoadedFromString = [NSString stringWithFormat:@"PR #%@", @(prNumber)];
  } else if (useRNP) {
  - NSString *rnpString = [NSString stringWithFormat:@"http://%@:8081/Example/Emission?platform=ios&dev=true", packagerURL];
  + NSString *rnpString = [NSString stringWithFormat:@"http://%@:8081/Example/Emission/index.ios.bundle?platform=ios&dev=true", packagerURL];
  _jsCodeLocation = [NSURL URLWithString:rnpString];
  _emissionLoadedFromString = [NSString stringWithFormat:@"Using RNP from %@", _jsCodeLocation.host];
  