sodium example
link to sodium-example from README
distinguish the two graph-alternating scenarios
Move library list to top
Verb tense
Move image to top
Shorter, centered image

I don't want the image to push the library list off the screen.

Since GitHub doesn't support centering images, I added padding to the
image itself. What a hack!
Look at the code, not at how the app looks.
Move implemented libraries to top
Intro to TodoMVC
Update README.md
Add ordrea implementation
Update README.md