Merge pull request #275 from blockchyp/feature/CHYP-3595

added passthroughSurcharge to model.json

README.md

@@ -14,7 +14,7 @@ The preferred method of installing BlockChyp is via cocoapods. Add the following
 dependency to your Podfile and type `pod install`.
 
 ```
-  pod 'BlockChyp', '~> 2.25.23'
+  pod 'BlockChyp', '~> 2.18.6'
 ```
 
 Note: If you're using Swift, you'll need to make sure dynamic frameworks are turned