Update README.md

.travis.yml

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+osx_image: xcode9
+language: swift
+podfile: ./Podfile
+script:
+  - xcodebuild -workspace Ruler.xcworkspace -scheme Ruler build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO | xcpretty
+before_install: 
+  - pod install
+cache:
+  directories:
+  - Pods

README.md

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 # Ruler
 > A simple AR ruler app can measure length & area
 
-[![Swift Version][swift-image]][swift-url]
+![Xcode 9.0+](https://img.shields.io/badge/Xcode-9.0%2B-blue.svg)
+![iOS 11.0+](https://img.shields.io/badge/iOS-11.0%2B-blue.svg)
+![Swift 4.0+](https://img.shields.io/badge/Swift-4.0%2B-orange.svg)
+[![Build Status](https://travis-ci.org/TBXark/Ruler.svg?branch=master)](https://travis-ci.org/TBXark/Ruler)
 [![License MIT](https://img.shields.io/badge/license-MIT-green.svg?style=flat)](https://raw.githubusercontent.com/TBXark/TKRubberIndicator/master/LICENSE)
-[![Support](https://img.shields.io/badge/support-iOS%2011%2B%20-blue.svg?style=flat)](https://www.apple.com/nl/ios/)
 
 ![](logo.png)