Use v3.0.3 in readme

Author: mcalsada

Readme.md

@@ -2,7 +2,7 @@
 
 ## Version
 
-- 3.0.1:
+- 3.0.3:
     - A UserAgent HTTP Header is sent in API calls to better support ArchivesSapces hosted by Lyrasis.
     - Better support for ArchivesSpace LibraryHost instances where the AppPrefix is not standard.
     - Set API to use UTF8 for ArchivesSpace API requests