Rename podspec to swift-user-defaults, add makefile and update readme (#4)

Author: ryanpato

Makefile

@@ -0,0 +1,8 @@
+setup:
+	bundle install
+
+lint:	setup
+	bundle exec pod lib lint --allow-warnings
+
+release: lint
+	bundle exec pod trunk push

README.md

@@ -291,6 +291,14 @@ As with the `UserDefault.X` APIs, the property wrapper supports primitive, `RawR
 
 # Installation
 
+## CocoaPods
+
+[CocoaPods](https://cocoapods.org) is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate SwiftUserDefaults into your Xcode project using CocoaPods, specify it in your `Podfile`:
+
+```ruby
+pod 'swift-user-defaults'
+```
+
 ## Swift Package Manager
 
 Add the following to your **Package.swift**

SwiftUserDefaults.podspec renamed to swift-user-defaults.podspec

@@ -1,6 +1,7 @@
 Pod::Spec.new do |s|
-  s.name = "SwiftUserDefaults"
-  s.version = "0.0.1"
+  s.name = "swift-user-defaults"
+  s.module_name = "SwiftUserDefaults"
+  s.version = "0.0.2"
   s.summary = "A series of Swift friendly utilities for Foundation's UserDefaults class"
   s.homepage = "https://github.com/cookpad/swift-user-defaults"
   s.license = { :type => "MIT", :file => "LICENSE.txt" }