title: where is the root of the Xcode app project directory located?
body: <p>I'm following a app tutorial and it says: </p>
  
  <p>"Next, create an empty file in the root of the Xcode app project directory and call the file Podfile. Open it with your favorite text editor and paste the following line in it:"</p>
  
  <p>I'm confused exactly where this is? is it inside my Xcode program? or is it some folder inside my Xcode folder in finder?</p>