Clarify how to update data within Synology Photos

[benmccann]

A few changes here:

• The FotoTeam APIs said "Personal Space". Based on the other text in the readme, I'm assuming you meant "Shared Space". I didn't make the API calls to verify as it seems like a safe assumption
• Change "Browse" to "Handle". These APIs do quite a bit more than just readonly operations, but it took me awhile to figure that out
• List some example methods on Browse.Item. Makes it clearer that each API has a variety of read and write methods. Even if it's just some of the methods for a single API, giving an example lets people know there's more to go looking for to get a full picture of what these APIs do

[zeichensatz]

Thanks for your contribution!