add more examples

Author: thomasp85

doc/syntax/layer/type/violin.qmd

@@ -117,4 +117,16 @@ To achieve this outcome, you can set the `side` setting and adjust `width` to ta
 VISUALISE Temp AS x, Month AS y FROM ggsql:airquality
 DRAW violin SETTING width => 4, side => 'top'
 SCALE ORDINAL y
-```
+```
+
+The same facilities can be used to create violins where each side encode different subsets
+
+```{ggsql}
+VISUALISE body_mass AS y, species AS x, sex AS fill FROM ggsql:penguins
+DRAW violin
+  SETTING side => 'left'
+  FILTER sex = 'male'
+DRAW violin
+  SETTING side => 'right'
+  FILTER sex = 'female'
+```