use URI in SYNOPSIS

Author: skaji

lib/URI.pm

@@ -358,6 +358,8 @@ URI - Uniform Resource Identifiers (absolute and relative)
 
 =head1 SYNOPSIS
 
+ use URI;
+
  $u1 = URI->new("http://www.perl.com");
  $u2 = URI->new("foo", "http");
  $u3 = $u2->abs($u1);