Update UPGRADING.md

Author: lewzylu

UPGRADING.md

@@ -1,24 +1,27 @@
 cos-php-sdk-v5 Upgrade Guide
 ====================
+2.0.4 to 2.0.5
+----------
+- Fix bug when upload object with metadata
 
 2.0.3 to 2.0.4
 ----------
-1. Fix bug when using ip-port
+- Fix bug when using ip-port
 
 2.0.2 to 2.0.3
 ----------
-1. Fix path parse bug with /0/
+- Fix path parse bug with /0/
 
 2.0.1 to 2.0.2
 ----------
-1. Fix bug of `putObject` with `fopen`
-2. Add ut
+- Fix bug of `putObject` with `fopen`
+- Add ut
 
 
 2.0.0 to 2.0.1
 ----------
-1. Add interface of inventory/tagging/logging
-2. Fix bug of some interface with query string
+- Add interface of inventory/tagging/logging
+- Fix bug of some interface with query string
 
 
 1.3 to 2.0