version from 0.5.0 to 0.5.1

Author: devmjun

README.md

@@ -18,7 +18,7 @@ CaseContainer requires iOS 9 or above and is written in Swift 4.2
 CaseContainer is available through [CocoaPods](http://cocoapods.org). To install it, simply add the following line to your podfile: 
 
 ```ruby
-pod 'CaseContainer', '~> 0.5.0'
+pod 'CaseContainer', '~> 0.5.1'
 ```
 
 And run  `pod install`. 
@@ -34,7 +34,7 @@ $ brew install carthage
 add CaseContainer to your `Cartfile`: 
 
 ```ogdl
-github "devminjun/CaseContainer" ~> 0.5.0
+github "devminjun/CaseContainer" ~> 0.5.1
 ```
 
 And run `carthage update`.