Changes.md : Fix formatting etc
Changes.md : Fix formatting etc

hradec/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,hradec/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,hradec/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,hradec/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,hradec/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,GafferHQ/gaffer