A workaround - open your browser and go to:
Exactly so. I've bookmarked that in my browser. But it would be nice to make that page appear in the doc window. You can *sort* of do it with this link:
Copy that and paste it into the search field in the doc window. The page does try to appear but mostly it sort of wedges Xcode; it just doesn't have the browser cojones for this page, I think.