Added reference to the NTISSubscriberService-Information.txt file in the README.md file
Added reference to the NTISSubscriberService-Information.txt file in the README.md file

Change-Id: I58ac87a331997db043a99c676ed8daebf7583578

ntisservices/ntis-java-web-services-Release2.5,ntisservices/ntis-java-web-services-Release2.5