<a> tag can use a
target attribute to tell the browser if the link needs to open in the same tab or a new one. The
rel attribute goes hand in hand with
target (in case someone wants to specify that too).
At the moment, the figure shortcode assigns only the
href in the embedded
I am proposing supporting optional target and rel parameters for that shortcode.
If there’s no problem with this proposal, I can start working on the PR.