README.md in shenzhen-0.5.0

- old
+ new

@@ -22,10 +22,11 @@
       Commands:
         build                 Create a new .ipa file for your app
         distribute:testflight Distribute an .ipa file over TestFlight
         distribute:hockeyapp  Distribute an .ipa file over HockeyApp
         distribute:ftp        Distribute an .ipa file over FTP
+        distribute:S3         Distribute an .ipa file over Amazon S3
         help                  Display global or [command] help documentation.
 
       Aliases:
         distribute           distribute:testflight
 
@@ -48,14 +49,24 @@
 
 #### HockeyApp Distribution
 
     $ ipa distribute:hockeyapp -t API_TOKEN
 
-> Shenzhen will load credentials from the environment variables `TESTFLIGHT_API_TOKEN` and `TESTFLIGHT_TEAM_TOKEN` unless otherwise specified.
+> Shenzhen will load credentials from the environment variable `HOCKEYAPP_API_TOKEN` unless otherwise specified.
 
 #### FTP Distribution
 
-    $ ipa distribute:hockeyapp -h HOST -u USER -p PASSWORD -P FTP_PATH
+    $ ipa distribute:ftp --host HOST -u USER -p PASSWORD -P FTP_PATH
+
+#### SFTP Distribution
+
+    $ ipa distribute:sftp --host HOST -u USER -p PASSWORD -P FTP_PATH
+
+#### Amazon S3 Distribution
+
+    $ ipa distribute:s3 -a ACCESS_KEY_ID -s SECRET_ACCESS_KEY -b BUCKET
+
+> Shenzhen will load credentials from the environment variable `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY` and `AWS_REGION` unless otherwise specified.
 
 ## Contact
 
 Mattt Thompson
 