Add Pixi Dart to the Game Development section
Update README.md
Added the following 2D rendering and animation libraries:
https://github.com/FedeOmoto/pixi
https://github.com/playif/play_pixi
https://github.com/playif/play_phaser﻿
https://github.com/emergent-design/pixi.dart
Add database section
Merge pull request #2 from FedeOmoto/master

Add Pixi Dart to the Game Development section
Merge pull request #6 from lanternjos/master

Add Force
Add markdown to Parsers
Add YAML to parsers
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  Added four libraries