Update README

Author: TahaTesser

packages/url_launcher/url_launcher/README.md

@@ -11,9 +11,9 @@ To use this plugin, add `url_launcher` as a [dependency in your pubspec.yaml fil
 ## Installation
 
 ### iOS 
+Add scheme for any URL passed on `canLaunch` to your _Info.plist_ file.  
 
-Add the following keys to your _Info.plist_ file, located in `<project root>/ios/Runner/Info.plist`:
-
+Example:  
 ```
 <key>LSApplicationQueriesSchemes</key>
 <array>