Added note about IPv6 and cURL

Author: winniequinn

README.md

@@ -6,11 +6,13 @@
 04. Install [Cocoapods](https://cocoapods.org) if you haven't already.
 05. `pod install`
 06. Symlink the "DRM_Connector_Prerelease" directory to "adobe-rmsdk" within the "Simplified-iOS" directory. (You will need to have obtained the Adobe DRM Connector prerelease from Adobe.)
-07. Follow the instructions in "adobe-rmsdk/RMSDK_User_Manual(obj).pdf" to build OpenSSL (section 12.1) and cURL (section 12.3).
+07. Follow the instructions in "adobe-rmsdk/RMSDK_User_Manual(obj).pdf" to build OpenSSL (section 12.1) and cURL (section 12.3).*
 08. `sh adobe-rmsdk-build.sh`
 09. `open Simplified.xcworkspace`
 10. Build.
 
+\* If you want to release your app in Apple's App Store, you must add `--enable-ipv6` to line 80 of Adobe's "build.sh" script used for building cURL. Without that flag, cURL will not provide proper support for IPv6 and therefore Apple will reject your application.
+
 # Building Without DRM
 
 **Note:** This configuration is not currently supported. In the interim, you _should_ be able to get it to build via the following steps: