Update README.md

Author: Fivell

README.md

@@ -11,7 +11,7 @@ Should work with both AA 0.6 and 1.0.0
 Add this line to your application's Gemfile:
 
 ```ruby
-gem "active_admin_import" , '2.1.0'
+gem "active_admin_import" , '2.1.1'
 ```
 
 And then execute:
@@ -207,9 +207,8 @@ https://github.com/gregbell/active_admin
 https://github.com/zdennis/activerecord-import
 
 #Source Doc
-http://rubydoc.info/gems/active_admin_import/2.1.0/
+http://rubydoc.info/gems/active_admin_import/2.1.1/
 
 
 
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