Empty articles
First couple of paragraphs
Initial outline
a little more detail but still a bit mess. 

I'm still thinking about the general structure. Will get better as I implement the demo project.
Update 2014-05-01-collectionview-animations.md
Add section about layer trees
Improve introduction
Improve CABasicAnimation section
Explicitly set duration
Add section about fill mode and removal
Add further reading
Added a super early draft of my idea

This is so that others can an overview of what I was planning to write
about.
Added empty article.
Add initial outline
Use citations as placeholders
Update section on CABasicAnimation
Add section on CAKeyframeAnimation
Initial commit of my Prototyping article
Framer prototype in codepen, quartz composer video, and photo.
Initial commit of my Prototyping article