Observer vs Pub-Sub-Pattern

I just read the page of the Observer Pattern and was a little bit confused with the naming, as I had different names (Subject, Observer) in my mind. You use Publisher and Subscriber in your explaination which is a little bit misleading, as the Publisher-Subscriber-Pattern is someting different. Is there any way to change it on the website? I love the website and often share links from it, but this time I didn't want to share as it could possibly be confusing.