Merge pull request #1 from lizlongnc/gh-pages

overhauled index.html, minor change to styles.css
Merge pull request #2 from lizlongnc/gh-pages

editor, editorModal, and main screenshots
Merge pull request #3 from lizlongnc/gh-pages

minor changes to editor Modal screenshot
Delete editorModal_01.png
editor modal screenshot
Create README.md
new Ang image