Updated change log in README.md

Removed empty objects from SVG

Updated README

Moved byteStride from accessor to bufferView

Added glTF overview 2.0

Updates for glTF 1.1

- Technique and material parameter values must be arrays
- Updated version number to 1.1.0

Update to version 0.2.0

Added section about vertex skinning.
Added section about extensions.
Explained usage of bufferView and accessors.
Removed summary about "Rendering a glTF".
General layout updates.

Initial commit