Improve documentation for TypeScript support

In TypeScript, to do dependency injection, we must statically include the $inject variable into each class. It would be great if ng-annotation would automatically recognize all TypeScript classes that are acting as Angular components and then inject the static $inject variable beside the constructor.

BEFORE INJECTION:

class MyDirective { 
constructor($scope:any,service:MyService)
      {

      }
 }

AFTER INJECTION:

class MyDirective { 
 static $inject = ["$scope","MyService"]; 
 constructor($scope:any,service:MyService)
      {

      }
 }

[olov]

The README is now very clear that it is preferred to use "ngInject"; with TypeScript. Closing

[szahn]

I see that the readme states that TypeScript is supported, however a sub-heading with sample code on annotating a constructor would have been useful.