Update modules/ROOT/pages/contexttoolbar.adoc

Co-authored-by: Farzad Hayat <[email protected]>

Author: kemister85

modules/ROOT/pages/contexttoolbar.adoc

@@ -38,7 +38,7 @@ The object structure takes two optional properties: `name` and `label`.
 * `label`: property is used as a label for each group of buttons.
 
 [NOTE]
-If neither `name` nor `label` is specified, the behavior defaults to ungrouped buttons.
+If neither `name` nor `label` are specified, the behavior defaults to ungrouped buttons.
 
 The object structure for `items` is as follows: