Added docs for method say and added some missing text to print-nl. ti…

…motimo++

doc/Type/IO/Handle.pod

@@ -86,15 +86,28 @@ to write bytes.
 
     method print-nl(IO::Handle:D: --> True)
 
-Writes a newline to the filehandle. The newline marker defaults
-to C<\n> unless another marker has been specified in the call to
-L<open>.
+Writes a newline to the filehandle. The newline marker, which is stored
+in the attribute C<$.nl-out>, defaults to C<\n> unless another marker has
+been specified in the call to L<open>.
 
-    my $fh = open 'path/to/file', :w, nl-out => "\r\n";  
+    my $fh = open 'path/to/file', :w, nl-out => "\r\n";
     $fh.print("some text");
     $fh.print-nl;                                        # \r\n
     $fh.close;
 
+=head2 method say
+
+    method say(IO::Handle:D: |)
+
+This method is identical to L<print|/type/IO::Handle#method_print> except
+that it stringifies its arguments by calling C<.gist> on them and
+auto-appends a newline, with a call to L<print-nl|/type/IO::Handle#method_print-nl>,
+after the final argument.
+
+    my $fh = open 'path/to/file', :w;  
+    $fh.say(Complex.new(3, 4));        # 3+4i\n
+    $fh.close;
+
 =head2 method read
 
     method read(IO::Handle:D: Int(Cool:D) $bytes --> Blob)