title: xcode edit file.txt with URL filepath
body: <p>I have a NSUrlRequest as filepath and I would to know how to add sentence in this file. This file is a txt file and is in the same folder like the .m
  The code below, allow the generate an URL address and display the file in a WebView:</p>
  
  <pre><code>     NSURL *url = [self generateFileURL:self.documentName];
   NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
   [self.webView loadRequest:urlRequest];
  </code></pre>
  
  <p>Thanks,</p>