Mention the version support for the cross-mount support, since 5.18.
Author: AtticFinder65536
Pull-request: #480
Signed-off-by: David Sterba <dsterba@suse.com>
Copy contents from https://btrfs.wiki.kernel.org/index.php/Changelog#By_feature
The formatting is done by a definition and list, instead of a table.
Unfortunatelly RST does not wrap long text in table cells so the width
exceeds visible area.
Signed-off-by: David Sterba <dsterba@suse.com>