Merge pull request #47 from dickeyxxx/readme/typo

typo

README.md

@@ -21,7 +21,7 @@ Yes, Gin is an internal project of [my](https://github.com/manucorporat) upcomin
 - Improve JSON/XML validation using bindings
 - Improve XML support
 - Improve documentation
-- Add more cool middlewares, for example redis catching (this also helps developers to understand the framework)
+- Add more cool middlewares, for example redis caching (this also helps developers to understand the framework)
 - Continuous integration