Output <summary> tag instead of <content> if .Content is empty

[kaushalmodi]

No description provided.

[jpawlowski]

I started to maintain a variant of this for RSS feeds, also integration additional name spaces for enhanced functionality.
I did also implement the summary vs content logic there and am about to send you a patch file für the Atom feed.
However, what's still missing is to add a localized link to the summary if there was no content (#2 ).
Also, I wanted to add a parameter on site and page level to disable content - with showing the content per default, of course.

Speaking of this, I was wondering whether we wanted to add a changed RSS version to this theme here (using a different file name like feed.rss as a default so it does not interfere with the existing built-in files). It could also be a totally separate repo but expecting people using this Atom theme might either disable RSS entirely or are likely to want a better RSS feed as a backup as well (I am part of the latter community, just because I can :D).

[kaushalmodi]

It could also be a totally separate repo

Firstly, because this repo has "atom" in its name :)

And also, because I will not be able to commit the same level of maintenance to the RSS repo.

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I think a separate repo would be nice; may be you called it hugo-rss+-feed :) I would be happy to help you out in that repo though.