README.md in enum_ish-1.5.1 vs README.md in enum_ish-1.6.0

- old
+ new

@@ -204,10 +204,10 @@
 ```ruby
 Rails.application.config.middleware.use EnumIsh::DictionaryCache
 ```
 
 This middleware enables dictionary cache for each request.
-Prformance of dictionary lookup will be improved in case one dictionary is used repeatedly in the same request.
+Performance of dictionary lookup will be improved in case one dictionary is used repeatedly in the same request.
 
 ## Contributing
 
 Bug reports and pull requests are welcome at https://github.com/kanety/enum_ish.
 