title: How to access a file(png file) generated by a gem in my rails application?
body: <p>Hi I am writing a gem and a rails application that uses this gem.</p>
  
  <p>The gem based on values passed, produces a image file.(i am writing it in gem's root directory )</p>
  
  <p>In my rails application, I want to access that image-file. how can I do that. </p>
  
  <p>What modifications I should make both in the gem and the rails-app to achieve this?</p>