Add docs about process of contributing code.
Add docs about process of contributing code.
IBwWG/haxeflixel.com,joackobengochea/haxeflixel.com,IBwWG/haxeflixel.com,gamedevsam/haxeflixel.com,joackobengochea/haxeflixel.com,IBwWG/haxeflixel.com,gamedevsam/haxeflixel.com,joackobengochea/haxeflixel.com,whilesoftware/haxeflixel.com,whilesoftware/haxeflixel.com,whilesoftware/haxeflixel.com,gamedevsam/haxeflixel.com