title: how to add to embedded binaries in Xcode?
body: <p>I'm under Project --> General --> Embedded Binaries.</p>
  
  <p>I clicked the "+" button below and then tried to add a library. But it doesn't appear there (like it does when I add to "Linked frameworks and Libraries" right underneath it.)</p>
  
  <p>Is there  reason for this? Or is there something else I have to do?</p>