Added link to getting started documentation

Author: bmoffatt

README.md

@@ -1,2 +1,4 @@
-# aws-lambda-java-libs
+# AWS Lambda Java Support Libraries 
 Interface definitions for Java code running on the AWS Lambda platform.
+
+To get started writing AWS Lambda functions in Java, check out the [official documentation] (http://docs.aws.amazon.com/lambda/latest/dg/java-gs.html).