Examples assume `photo` alias has been set in Login Portal

[Caleb9]

I'd like to draw your attention to the fact that in your examples you're assuming that photo alias has been set for Synology Photos in Control Panel -> Login Portal -> Applications. That alias does not seem to be set by default on fresh installations of DSM. Without the alias accessing APIs is almost the same, except that it requires specifying the port number (5000 for HTTP and 5001 for HTTPS by default) in the URLs (and removing photo from the path). Minor issue but you may want to mention this in the guide. :)