title: Is Facebook SDK Documentation for Swift outdated? What is the corresponding SDK version?
body: <p>I am building an iOS app which requires sharing on Facebook. I am using Swift(4) on Xcode(9). So I started using the documentation from the official page of Facebook -> <a href="https://developers.facebook.com/docs/swift/sharing/content-types" rel="nofollow noreferrer">Facebook Swift SDK</a>
  However, to my surprise almost every example listed in this page and others are giving compilation errors. For e.g. on this page there is a suggested way for <code>LinkShareContent</code> as per below:</p>
  
  <pre><code>import FacebookShare
  let content = LinkShareContent(url: NSURL("https://developers.facebook.com"))
  try ShareDialog.show(from: myViewController, content: content)
  </code></pre>
  
  <p>But the minute I add this to my code, I get the error -> <code>Argument labels '(_:)' do not match any available overloads</code> on the <code>NSURL</code></p>
  
  <p>So it seems like the documentation for Facebook SDK for Swift is outdated. Am I correct? if yes, can someone please guide me to the most updated version? Or what are my other options?
  If someone can at least tell me which version the current documentation corresponds to, then at least I can start working on an older version of the SDK.</p>