Method set_title

Set the title for the axes # Arguments `text` - Text of the title. Pass an empty string to hide the title `options` - Array of LabelOption<&str> controlling the appearance of the title. Relevant options are: `Offset` - Specifies the offset of the label `Font` - Specifies the font of the label `TextColor` - Specifies the color of the label `Rotate` - Specifies the rotation of the label `Align` - Sp

(&'l mut self, text: &str, options: &[LabelOption<&str>])