Generate a png in addition to the pdf and markdown files

[c2tz]

Let me explain, I'd like rendercv to be able to generate a png in addition to the pdf and md files. I found this example and it seems like a good idea because you could have a preview without having to download the pdf from a readme file on github. Does this sound feasible ?

[sinaatalay]

Yes, it’s easily doable. I already do something like this for automatic image generation for docs. I will implement it in my next availability. Thank you!

[c2tz]

#57