title: Is it possible to create an extension method to format a string?
body: <p>the question is really simple. How do we format strings in C#? this way:</p>
  
  <pre><code> string.Format("string goes here with placeholders like {0} {1}", firstName, lastName);
  </code></pre>
  
  <p>Now, is it possible to create an extension method to do it this way?</p>
  
  <pre><code> "string goes here {0} {1}".Format(firstName, lastName);
  </code></pre>
  
  <p>That's all.</p>