Updated Storage backend examples (markdown)

Storage-backend-examples.md

@@ -68,6 +68,20 @@ jclouds.identity=xxxxxxxxxxxxx
 jclouds.credential=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 jclouds.region=HKG
 ```
+
+### S3-compatible (DreamObjects, etc.)
+
+```
+s3proxy.endpoint=http://127.0.0.1:8080
+s3proxy.authorization=aws-v2
+s3proxy.identity=local-identity
+s3proxy.credential=local-credential
+jclouds.provider=s3
+jclouds.identity=xxxxxxxxxxxxxxxxxxxx
+jclouds.credential=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+jclouds.endpoint=https://objects.dreamhost.com
+```
+
 ### Swift (non-Keystone)
 
 ~~An example using remote swift with non-keystone v1 auth (default accounts created with Swift-In-A-Box instructions):~~