Fix mistake: put 'rename files' back

Author: aarmaane

docs/images/xcode360.png

@@ -179,6 +179,13 @@ You will now see your files in the sidebar.
 
 <img src="images/xcode110.png" width="256px" />
 
+#### Rename files
+If you need to rename any files, use Xcode, not the command line or Finder.  In EECS 280, you'll need to rename any files that end in `.starter`.
+
+Select a file and press <kbd>Enter</kbd>.  Change the file name.  In EECS 280, you'll do this to any file that ends in `.starter`.
+
+| <img src="images/xcode120.png" width="192px" /> | <img src="images/xcode125.png" width="192px" /> |
+
 ## Compile and Run
 An Xcode target compiles (builds) one executable.