Added missing documentation for <rainbow.sprite>:set_scale().
Added missing documentation for <rainbow.sprite>:set_scale().

tn0502/rainbow,pandaforks/tido-rainbow,tn0502/rainbow,tn0502/rainbow,tn0502/rainbow,tn0502/rainbow,pandaforks/tido-rainbow,tn0502/rainbow,pandaforks/tido-rainbow,pandaforks/tido-rainbow,pandaforks/tido-rainbow