more build infra

Gemfile

@@ -1 +1,3 @@
+source 'https://rubygems.org'
+
 gem 'slather'

MnemonicKit.podspec

@@ -3,8 +3,8 @@
   s.version      = "1.3.7"
   s.summary      = "MnemonicKit provides a Swift implementation of BIP39"
   s.description  = <<-DESC
-  MnemonicKit provides a Swift implementation of BIP39. 
-  
+  MnemonicKit provides a Swift implementation of BIP39.
+
   This library is originally forked from CKMnemonic: https://github.com/CikeQiu/CKMnemonic. Modifications are made for non-throwing APIs and support on OSX as well as iOS. Credit for most of this work is given to work_cocody@hotmail.com, qiuhongyang@askcoin.org.
                    DESC
 
@@ -16,11 +16,13 @@
   s.swift_version = "4.2"
   s.ios.deployment_target = "8.0"
   s.osx.deployment_target = "10.10"
-		
+
+  s.prepare_command = "xcodegen generate -s project.yml"
+
   s.dependency "CryptoSwift", "~> 0.14.0"
 
   s.test_spec "Tests" do |test_spec|
     test_spec.source_files = "Tests/*.swift"
     test_spec.resources = ["Tests/*.json"]
-  end  
-end
+  end
+end

README.md

@@ -7,12 +7,12 @@
 
 An implementation of BIP39 in Swift. MnemonicKit supports both English and Chinese mnemonics.
 
-This library is a fork of [CKMnemonic](https://github.com/CikeQiu/CKMnemonic). This fork provides several conveniences over the original library, namely: 
+This library is a fork of [CKMnemonic](https://github.com/CikeQiu/CKMnemonic). This fork provides several conveniences over the original library, namely:
 - Converting throwing APIs to non-throwing nullable APIs
 - Additional helper methods
 - Code clarity and documentation
 - Additional Testing
-- Support on OSX 
+- Support on OSX
 
 ## Installation
 
@@ -66,7 +66,14 @@ If you use Carthage to build your dependencies, make sure you have added `Crypto
 
 ## Contributions
 
-I am happy to accept pull requests. If anyone is able to reach the original authors of CKMnemonic, I am happy to merge this library upstream with them.
+I am happy to accept pull requests.
+
+To get set up:
+```shell
+$ brew install xcodegen # if you don't already have it
+$ xcodegen generate # Generate an XCode project from Project.yml
+$ open MnemonicKit.xcodeproj
+```
 
 ## License