CB-11860 - Add packageType to docs

 This closes apache#635

www/docs/en/dev/guide/platforms/ios/index.md

@@ -161,6 +161,7 @@ To sign an app, you need the following parameters:
 | Provisioning Profile     | `--provisioningProfile`  | GUID of the provisioning profile to be used for signing. It is copied here on your Mac: ```~/Library/MobileDevice/Provisioning\ Profiles/```. Opening it in a text editor, you can find the GUID which needs to be specified here.
 | Code Sign Resource Rules | `--codesignResourceRules`| (Optional) Used to control which files in a bundle should be sealed by a code signature. For more details, read [The OS X Code Signing In Depth article](https://developer.apple.com/library/mac/technotes/tn2206/_index.html#//apple_ref/doc/uid/DTS40007919-CH1-TNTAG206)
 | Development Team         | `--developmentTeam`      | This is new for Xcode 8. The development team ([Team ID](https://developer.apple.com/account/#/membership/)) to use for code signing. You would use this setting and a simplified Code Sign Identity (i.e. just 'iPhone Developer') to sign your apps, you do not need to provide a Provisioning Profile.
+| Packaging Type           | `--packageType`          | This will determine what type of build is generated by Xcode. Valid options are `development` (the default), `enterprise`, `ad-hoc`, and `app-store`.
 
 ### Using build.json
 
@@ -174,12 +175,14 @@ build configuration file:
         "debug": {
             "codeSignIdentity": "iPhone Development",
             "provisioningProfile": "926c2bd6-8de9-4c2f-8407-1016d2d12954",
-            "developmentTeam": "FG35JLLMXX4A"
+            "developmentTeam": "FG35JLLMXX4A",
+            "packageType": "development"
         },
         "release": {
             "codeSignIdentity": "iPhone Distribution",
             "provisioningProfile": "70f699ad-faf1-4adE-8fea-9d84738fb306",
-            "developmentTeam": "FG35JLLMXX4A"
+            "developmentTeam": "FG35JLLMXX4A",
+            "packageType": "app-store"
         }
     }
 }