Support for title attribute

[DanielHefti]

Currently I'm not able to set the title attribute to the iFrame. It would be great if this functionality would be provided. Something like:

/i/https://myurl.com { title="myUrls iFrame" }

When I try to add the title attribute at the end of the iFrame, like attributes on paragraphs, the title is added to the src.

Markdown code:

/i/https://myurl.com { title="myUrls iFrame" }

Generated HTML (current situation):

<iframe frameborder="0" src="https://myurl.com { title="myUrls iFrame" }"></iframe>

Generated HTML (desired outcome):

<iframe frameborder="0" src="https://myurl.com" title=""myUrls iFrame"></iframe>