bug4811: added and updated README for building the aws-sdk update site

java/com.amazon.aws.aws-java-api.updatesite/README

@@ -0,0 +1,4 @@
+This is the P2 update site project for http://p2.sapsailing.com/p2/aws-sdk.
+Its sibling project com.amazon.aws.aws-java-api can be opened by renaming
+its dot_project file to .project, then importing into Eclipse. See
+com.amazon.aws.aws-java-api/README for further instructions.

java/com.amazon.aws.aws-java-api/README

@@ -1,6 +1,7 @@
 TL;DR
 Keep this project CLOSED in Eclipse unless updating the AWS SDK for the target platform.
-Use ${workspace}/java/com.sap.sailing.targetplatform/scripts/createLocalAwsApiP2Repository.sh
+To open, rename dot_project to .project and import into Eclipse workspace.
+Then use ${workspace}/java/com.sap.sailing.targetplatform/scripts/createLocalAwsApiP2Repository.sh
 
 Details: