Add readme explaining how to work on the site

[gulpjs]

Add readme explaining how to work on the site

[yocontra]

@phated One thing to note is not writing custom CSS wherever possible and not touching primitives.

Seeing a lot of PRs writing shitloads of custom CSS that doesn't match the rest of the site, overriding shit like .col-4 globally, etc.

[ansballard]

https://github.com/bdougie/gulpjs.github.io/blob/code/README.md This seems like a good starting point. Needs the screenshot updated but it gives you a structure to build on.

[yocontra]

@ansballard Feel free to submit a PR - screenshot + "clone and open index.html" should be enough instruction

[phated]

That's the old readme, right? The screenshot is wrong and stuff. Needs a complete overhaul and probably should be done from scratch.

[code4cake]

Hey could I work on this one? Thanks

[yocontra]

@dantesolis Feel free to work on it and send a PR!

[code4cake]

oh fudge I think I took a bit too long solving this issue, @Saturate already took care of this.

[Saturate]

Yeah @dantesolis if you snooze you lose ;-) but feel free to review it!