docs: function(url, fromFilename, toFilename) {
  
  		if (!SKIP_URLS.test(url)) {
  
  			var fromDirname = path.dirname(fromFilename),
  				toDirname = path.dirname(toFilename),
  				fromPath = path.resolve(fromDirname, url),
  				toPath = path.resolve(toDirname);
  
  			return path.relative(toPath, fromPath).replace(/\\/g, "/");
  		} else {
  			return url;
  		}
  	}