Improve logo

[wlandau-lilly]

I drew the hex logo myself, but I am not a graphic designer. There is definitely room for improvement, and a redesign could be a fun little project for the right person. The current files are in images/ and vignettes/, and they follow the hexbin guidelines.

Also, it would probably be nice to embed a short tutorial video to replace the current gif. Ideally, the video should be hosted outside this repo. Linking to one is no problem, but if I make the video myself, I will need to get it through disclosure and probably will not be allowed to use any YouTube channel that I create.

On second thought, a tutorial video probably is not necessary. I would just be rehashing the README anyway. I may change my mind.

[wlandau-lilly]

Needs color and a better font: logomakr.com/4JuyZT

[wlandau-lilly]

Also needs a link at the bottom to the GitHub repo. That needs to wait until the verdict from rOpenSci.

[wlandau-lilly]

There may be some touching up to do, but the logo is much improved now! Many thanks to @kierisi for the advice via RStudio Community.

Once #147 is solved and drake moves to rOpenSci, I will change the link at the bottom to github.com/ropensci/drake. After that, everything should be in place to submit drake's hex logo to @maxogden's hexbin repo. The required images are both in the images folder: png and svg.

[wlandau-lilly]

Reopening. Apparently, people have trouble recognizing the new logo as a hammer with a brain. I have prepared a painless svg canvas, which is just the logo with the hammer and brain removed. Now, anyone with Inkscape and the Montserrat font can just focus on the fun part.