iOS Guide: authenticationKeyPath needs a absolute path (#1384)

The documentation was unclear if an absolute path is needed. When using a relative path, the archiving will fail.

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

@@ -212,7 +212,7 @@ To sign an app, you need the following parameters:
 | 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`.
 | Provisioning Profile         | `--provisioningProfile`       | (Optional) GUID of the provisioning profile to be used for manual 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 if using manual signing.
 | Automatic Provisioning       | `--automaticProvisioning`     | (Optional) Enable to allow Xcode to automatically manage provisioning profiles. Valid options are `false` (the default) and `true`.
-| Authentication Key Path      | `--authenticationKeyPath`     | (Optional) The path to an [App Store Connect API](https://developer.apple.com/documentation/appstoreconnectapi/creating_api_keys_for_app_store_connect_api) p8 key file, for automatic distribution signing.
+| Authentication Key Path      | `--authenticationKeyPath`     | (Optional) The absolute path to an [App Store Connect API](https://developer.apple.com/documentation/appstoreconnectapi/creating_api_keys_for_app_store_connect_api) p8 key file, for automatic distribution signing. A relative path will not work.
 | Authentication Key ID        | `--authenticationKeyID`       | (Optional) The key ID for the App Store Connect API key file, for automatic distribution signing.
 | Authentication Key Issuer ID | `--authenticationKeyIssuerID` | (Optional) The issuer ID value for the App Store Connect API credentials,for automatic distribution signing.
 
@@ -243,7 +243,7 @@ For automatic signing, where provisioning profiles are managed automatically by
             "developmentTeam": "FG35JLLMXX4A",
             "packageType": "app-store",
             "automaticProvisioning": true,
-            "authenticationKeyPath": "/path/to/AuthKey_D383SF739.p8",
+            "authenticationKeyPath": "/absolute/path/to/AuthKey_D383SF739.p8",
             "authenticationKeyID": "D383SF739",
             "authenticationKeyIssuerID": "6053b7fe-68a8-4acb-89be-165aa6465141"
         }