How to configure plist for Facebook SDK

With my limited technical skills, I am not sure how to read the following step from Facebook.

Create an array key called URL types with a single array sub-item called URL Schemes. Give this a single item with your app ID prefixed with fb.

So what I think I should is

1. Create a Key of Type Array and call the key URL types


2. Open item 0 of the array and in there create an array called URL Schemes

So at this point the progression in the plist is URL types > Item 0 > URL Schemes, where URL Schemes is also an array. Is this correct? Also for the final step, if my app id is 12345, then I should have it as fb12345 with no space between fb and 12345. So in the end my key is URL types > Item 0 > URL Schemes > Item 0 and my single value is fb12345.