Optimise images (263 KB reduction)

Hi, itod.

I've taken the liberty of putting parsekit's image assets though a range of optimisation tools. Image optimisation allows us to reduce the footprint of images - meaning faster load times at no cost to image quality. It does this by finding the best (lossless) compression parameters, stripping embedded comments, and removing unnecessary colour profiles. [See more](http://port3000.co.uk/imageoptimiser-a-github-bot-to-proactively-op).

I found 11 optimisable images, making a 263 KB reduction in size. That's about 40.04% of your total image assets.

Merry Christmas.

<table><tr><th>Name</th><th>Reduction</th></tr><tr><td>step1a.png</td><td>37.48%</td></tr><tr><td>step1b.png</td><td>37.04%</td></tr><tr><td>step2a.png</td><td>33.56%</td></tr><tr><td>step3a.png</td><td>37.47%</td></tr><tr><td>step4a.png</td><td>41.72%</td></tr><tr><td>step4b.png</td><td>42.34%</td></tr><tr><td>step5a.png</td><td>46.37%</td></tr><tr><td>step6a.png</td><td>44.74%</td></tr><tr><td>step7a.png</td><td>47.98%</td></tr><tr><td>json.png</td><td>41.12%</td></tr><tr><td>umekit.png</td><td>38.09%</td></tr></tr></table>

Tools used: advpng, gifsicle, jpegoptim, jpegrescan, jpegtran, optipng, pngcrush, pngout. This is an automated bot maintained by [@skattyadz](https://twitter.com/skattyadz)