Merge pull request #1 from adslaton/test

Updating README to show where to develop
Update README.md
Updating README
Adding style for header slogan and page h2
Adding style for the menu
Adjusting the style of the description text
Adjusting the style of the bottom promo section
Adding images for bottom promo section
Adding footer text and style
Adding remaining styles for bottom promo section
Merge branch 'dev' of https://github.com/adslaton/html into addev

Conflicts:
	README.md
	aviation.html
	css/aviation.css
adjustin css conflicts
Merge pull request #6 from adslaton/addev

Adding styles for the aviation.html page