Readme update, podspec and license

Localize-Swift.podspec

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+Pod::Spec.new do |s|
+  s.name         = "Localize-Swift"
+  s.version      = "0.0.1"
+  s.summary      = "In-app language switching and better syntax for Swift i18n -  work in progress"
+  s.description  = "Swift framework that improves i18n and localization with cleaner syntax and in-app language switching."
+  s.homepage     = "https://github.com/marmelroy/Localize-Swift"
+  s.license      = "MIT"
+  s.author             = { "Roy Marmelstein" => "[email protected]" }
+  s.social_media_url   = "http://twitter.com/marmelroy"
+  s.source       = { :git => "https://github.com/marmelroy/Localize-Swift.git", :commit => "feb8c0b89289a01bc54871466e1bfbf395f59a82" }
+  s.source_files = "Localize.swift"
+  s.platform = :ios
+  s.ios.deployment_target = "8.0"
+  s.requires_arc = true
+end

Localize/LICENSE

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+Copyright (c) 2015 Roy Marmelstein (http://roysapps.com/)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
+
 # Localize-Swift
-In-app language switching and better syntax for Swift i18n -  work in progress
+Localize-Swift is a Swift framework that improves i18n and localization with cleaner syntax and in-app language switching.
+
+### Setting up with Carthage
+
+[Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.
+
+You can install Carthage with [Homebrew](http://brew.sh/) using the following command:
+
+```bash
+$ brew update
+$ brew install carthage
+```
+
+To integrate Localize-Swift into your Xcode project using Carthage, specify it in your `Cartfile`:
 
+```ogdl
+github "marmelroy/Localize-Swift"
+```