adding simple style

this is a very simple style feel free to change and make it better or replace it.
make it work with the style sheet

I added id's and a link to the css file I also replaced the text "welcome to text-rpg" with a big text "text RPG"
Merge pull request #8 from codecademy-beginners/gh-pages

Merge pull request #7 from codecademy-beginners/master
Merge pull request #9 from codecademy-beginners/master

adding the changes