Organize directories

[felipecustodio]

Move submissions into their respective domain folders.

[HeathNaylor]

I think I may pick this one up.

[HeathNaylor]

What do you think of this? If you like it or want to work on a "style" guide of some form let me know and I will continue working on this.

#123

[felipecustodio]

Hey @HeathNaylor! How are you?

Thanks for the PR!

With Hacktoberfest approaching, an extra helping hand is very welcome.
Next weekend I'll have some free time to help organize this repo.

[HeathNaylor]

Great, I will try to squeeze in some extra time this week to work on this as well. I will be working top down for the directories and will create issues for when I start working on them so we don't overlap efforts.

[felipecustodio]

@HeathNaylor hey Heath, I've updated the contributing guideline to match the style we've been following.

Also created the issue for Hacktoberfest 2019, we've already started receiving PRs! :)

If you want to contribute with your own code too, please do!