Feed doesn’t validate in itunes - itunes:category should have a self closing tag

Thanks for this library, it’s great.

However, according to the [Apple docs](https://help.apple.com/itc/podcasts_connect/#/itcb54353390), for a feed to validate on itunes podcasts the itunes:category tag should be self closing:

But node-rss produces:

So the feed doesn’t validate on itunes.

Is there a way to specify the feed options so as to get the self closing tag version?

Updated - Here is the config I am using:

{'itunes:category': [
{_attr: {
text: ‘History'
}}
]}