Agreed. I put in a explanatory sentence and a link to <a href="https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;ios&#x2F;documentation&#x2F;General&#x2F;Conceptual&#x2F;DevPedia-CocoaCore&#x2F;NibFile.html" rel="nofollow">https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;ios&#x2F;documentation&#x2F;Genera...</a> in there.