docs(data-table): add some more docs (#404)

src/components/data-table-v2/README.md

@@ -34,6 +34,14 @@ The update to tables splits out the `scss` files into multiple partial files wit
 
 #### Events
 
+| Key                      | Value                            | Description                                |
+|--------------------------|----------------------------------|--------------------------------------------|
+| eventBeforeExpand        | data-table-v2-beforetoggleexpand | Row expansion event                        |
+| eventAfterExpand         | data-table-v2-aftertoggleexpand  | Row expansion event                        |
+| eventBeforeSort          | data-table-v2-beforetogglesort   | Sort event                                 |
+| eventAfterSort           | data-table-v2-aftertogglesort    | Sort event                                 |
+| eventTrigger             | [data-event]                     | Data attribute for clickable events        |
+| eventParentContainer     | [data-parent-row]                | Data attribute for event container         |
 
 
 #### Options
@@ -56,19 +64,15 @@ The update to tables splits out the `scss` files into multiple partial files wit
 | classExpandableRowHover  | bx--expandable-row--hover-v2     | Hover styles class                         |
 | classTableSortAscending  | bx--table-sort-v2--ascending     | Ascending sort icon class                  |
 | classTableSortActive     | bx--table-sort-v2--active        | Active sort icon class                     |
-| eventBeforeExpand        | data-table-v2-beforetoggleexpand | Row expansion event                        |
-| eventAfterExpand         | data-table-v2-aftertoggleexpand  | Row expansion event                        |
-| eventBeforeSort          | data-table-v2-beforetogglesort   | Sort event                                 |
-| eventAfterSort           | data-table-v2-aftertogglesort    | Sort event                                 |
-| eventTrigger             | [data-event]                     | Data attribute for clickable events        |
-| eventParentContainer     | [data-parent-row]                | Data attribute for event container         |
+
 
 ### FAQ
 
 **How do I sort the tables**
 The table component does not sort the table for you, rather it emits an event and toggles the sort UI. It is up to the user to re-render the table rows sorted; you can see this in action `here`.
 
 **How do I use the expandable rows**
+If you would like to programmatically expand table rows, you can add the `bx--expandable-row-v2` to the `selectorParentRows` elements.
 
-
-**How do I activate the batch actions pane**
+**How do I activate the batch actions pane**
+If you would like to programmatically activate the batch actions pane, you can add `bx--batch-actions--active` to the `bx--batch-actions` element.