Updated Amazon S3 API (markdown)

Amazon-S3-API.md

@@ -17,12 +17,13 @@ Try to keep the volume size low. For example,
 weed master -volumeSizeLimitMB=1024
 ```
 
-The other side is to reduce the number of volumes to create. In `weed shell`, you can configure this way:
-```
-$ weed shell
-> fs.configure -locationPrefix="/buckets/" -volumeGrowthCount=3 -apply
+In addition, you can also configure the per bucket storage this way in `weed shell`:
 
-```
+> fs.configure -locationPrefix=/buckets/ -volumeGrowthCount=1 -apply
+
+This will add 1 physical volume when existing volumes are full. If using replication, you will need to add more volumes.
+
+See https://github.com/chrislusf/seaweedfs/wiki/Path-Specific-Configuration
 
 
 # Supported APIs