Update-sd-card-setup-windows

First crack at this; feel free to tear it apart, or let me know what needs adding. This was half an exercise to make sure I could both handle the writing/simple Markdown code, and that I understood methodology for forking new material to GitHub. Seems remarkably easy, but let's hope I got it right.
Update#2-sd-card-setup-windows.md

Added Win32DiskManager Instructions
Removed 'issues' section, added link to troubleshooting page
Added link to quick-start, preparing device section.
Put important notes into [Warning] and [Info] boxes.

Added Notes section; I wanted a place for valuable information that didn't need to be in the body of the text. I was thinking that the 'procedures' section should be as clean and straightforward as possible, if it's to be a tutorial. It makes sense to me as of *this* writing.. <shrug>

The bit about Sd card speed has to do with my experience, maybe it shouldn't go up until that is better tested. It makes me think there should be a section on devices themselves; one place where interested folk can check out what is required for a basic setup, rather than sifting through the larger internet for information. RPi for instance, only ships with a board, you even have to purchase a power cord/supply separately. 

Had some issues with StackEdit putting extra spaces between lines for no reason I could see. They fixed themselves when I put in blockquotes. 

Clearly I am terrible at GIMP, I may try to update with better images later.
Merge pull request #1 from Fishstixx/patch-1

Update-sd-card-setup-windows