README.md in aixm-0.3.0 vs README.md in aixm-0.3.1

- old
+ new

@@ -48,10 +48,9 @@
 
 The following configuration options are available for setting and getting:
 
 ```ruby
 AIXM.config.schema           # either :aixm (default) or :ofmx
-AIXM.config.region           # fallback region
 AIXM.config.ignored_errors   # ignore XML schema errors which match this regex
 ```
 
 There are shortcuts to set and get the schema:
 