Further documentation fixes

lib/Travel/Routing/DE/VRR/Exception.pod

@@ -4,7 +4,7 @@ Travel::Routing::DE::VRR::Exception - Travel::Routing::DE::VRR Exceptions
 
 =head1 DESCRIPTION
 
-All Exceptions throws by Travel::Routing::DE::VRR::Exception are
+All Exceptions throws by Travel::Routing::DE::VRR are
 Travel::Routing::DE::VRR::Exception objects created by Exception::Class(3pm).
 
 See Exception::Class::Base(3pm) for their common methods.

lib/Travel/Routing/DE/VRR/Route.pm

@@ -39,8 +39,8 @@ Travel::Routing::DE::VRR::Route - Single route (connection) between two points
 
 =head1 SYNOPSIS
 
-	for my $route ( $efa->routes() ) {
-		for my $part ( $route->parts() ) {
+	for my $route ( $efa->routes ) {
+		for my $part ( $route->parts ) {
 			# $part is a Travel::Routing::DE::VRR::Route::Part object
 		}
 	}

lib/Travel/Routing/DE/VRR/Route/Part.pm

@@ -38,10 +38,10 @@ points, without interchanges
 
 =head1 SYNOPSIS
 
-	for my $part ( $route->parts() ) {
+	for my $part ( $route->parts ) {
 
-		if ( $part->extra() ) {
-			say join( "\n", $part->extra() );
+		if ( $part->extra ) {
+			say join( "\n", $part->extra );
 		}
 
 		printf(