commute: show weekday name in journey list

% for my $i (0 .. $#{$months}) {

	<h2><%= $months->[$i] %></h2>

	%= include '_history_trains', date_format => '%d.%m.', journeys => $journeys_by_month->{$i+1} // []

	%= include '_history_trains', date_format => '%a %d.%m.', journeys => $journeys_by_month->{$i+1} // []

% }