Use plot as blog post image

[11rchitwood]

Let's say I have a post whose first code chunk is:

plot(cars)

How can I make this be the preview image for the post?

[cscheid]

I don't believe this is supported right now, but that's a good idea. I'll create a github issue.

[cscheid]

Here's the github issue. I'll lock this convo to keep the discussion in one place. Thanks for the idea!