* refactor: add components directory
ref #166
* build: split nes.scss into nes.css and nes-core.css
and change npm scripts for build
ref #166
* docs(readme.md): add nes-core.css link
* docs: add components directory path
and minor modification of the document
I've added translation links to all of the documents, so anybody that pulls up any of our docs will
have links to all of the other available translations.
#137
I've moved all of the development information from `README.md` to `CONTRIBUTING.md`, plus added some
information that I included in a lot of my other contributing instructions.