update podspec

Author: aschuch

QRCode.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name              = "QRCode"
-  s.version           = "0.2"
+  s.version           = "0.5"
   s.summary           = "A QRCode generator written in Swift."
   s.description       = "Generate QRCodes and customize their appearance."
   s.homepage          = "https://github.com/aschuch/QRCode"

README.md

@@ -86,7 +86,7 @@ Then run `carthage update`.
 Add the following line to your Podfile.
 
 ```
-pod "QRCode", "~> 0.1"
+pod "QRCode", "~> 0.5"
 ```
 
 Then run `pod install` with Cocoapods 0.36 or newer.