title: How to set NSAttributedString range?
body: <p>A little confused with using the syntax. 
  I know you are supposed to use NSFontAttributeName, however I don't know how to correctly specify the range.</p>
  
  <p>I'm curious about two cases.</p>
  
  <p>How do I specify the range for all characters in the text, and how do I specify the range as something like the first 10 characters.</p>
  
  <p>Any suggestions?</p>