docs(Table): fix typo and add missing prop on README (#1257)

src/components/Table/README.md

@@ -54,8 +54,9 @@ Additional functionality is enabled via HOCs:
 
 | Name        | Description                                                                                                        |                            Type                            |                           Default                           |
 | :---------- | :----------------------------------------------------------------------------------------------------------------- | :--------------------------------------------------------: | :---------------------------------------------------------: |
-| id          | Column ID                                                                                                          |                          `any[]`                           |                                                             |
+| id          | Column ID                                                                                                          |                          `string`                          |                                                             |
 | name        | Column name (header)                                                                                               |             `string` `(() => React.ReactNode)`             |                          column ID                          |
+| className   | CSS-class that will be added to all cells in the column                                                            |                          `string`                          |                                                             |
 | placeholder | The stub when there is no data in a cell                                                                           | `string` `((item: any, index: number) => React.ReactNode)` |                        `— (—)`                        |
 | template    | Cell contents. If you skip a row, the cell contents will be the value of the field with the same name as this row. | `string` `((item: any, index: number) => React.ReactNode)` | The value of the field with the name equal to the column ID |
 | align       | Content alignment                                                                                                  |               `"left"` `"center"` `"right"`                |                                                             |