QoL improvments to the colorizer's wiki.

[Nathan22211]

When looking at the wiki, it's not hard to understand, but it is lacking in punctuation (there's little more than spaces and periods for that,) has quite a few spelling errors, and in the software setup it seems the steps are in the wrong order.

I have a fork of this project with a wiki I'm working on to remedy this. Granted spacing's odd around photos, but I did correct what I could. Just note that my writing style's different.

My fork's Wiki: https://github.com/Nathan22211/3DPrintColorizer/wiki (calibration steps aren't in there yet)