+ add <u> and <b> handlers

lib/Text/Dokuwiki/Render/Markdown.pm

@@ -28,6 +28,11 @@ sub _list {
   return $text . "\n";
 }
 
+sub _wrap {
+  my ($self, $border, $attrs, $content) = @_;
+  return $border . $self->treewalk($content) . $border;
+}
+
 sub h1 { my $self = shift; $self->_header('h1', @_); };
 sub h2 { my $self = shift; $self->_header('h2', @_); };
 sub h3 { my $self = shift; $self->_header('h3', @_); };
@@ -38,6 +43,9 @@ sub h6 { my $self = shift; $self->_header('h6', @_); };
 sub ul { my $self = shift; $self->_list(@_); };
 sub ol { my $self = shift; $self->_list(@_); };
 
+sub b  { my $self = shift; $self->_wrap('**', @_); } # bold
+sub u  { my $self = shift; $self->_wrap('*',  @_); } # underline, replace with italics
+
 sub div {
   my ($self, $attrs, $content) = @_;
   return $content;