docs: fix a typo in the TextArea readme (#1383)

src/components/controls/TextArea/README.md

@@ -203,7 +203,7 @@ LANDING_BLOCK-->
 | onFocus         | Fires when the control gets focus. Provides focus event as a callback's argument                                                  |                     `function`                      |                 |
 | onKeyDown       | Fires when a key is pressed. Provides keyboard event as a callback's argument                                                     |                     `function`                      |                 |
 | onKeyUp         | Fires when a key is released. Provides keyboard event as a callback's argument                                                    |                     `function`                      |                 |
-| onUpdate        | Fires when the input’s value is changed by the user. Provides new value as ancallback's argument                                  |                     `function`                      |                 |
+| onUpdate        | Fires when the input’s value is changed by the user. Provides new value as a callback's argument                                  |                     `function`                      |                 |
 | pin             | The control's border view                                                                                                         |                      `string`                       | `"round-round"` |
 | placeholder     | Text that appears in the control when no value is set                                                                             |                      `string`                       |                 |
 | qa              | Test id attribute (`data-qa`)                                                                                                     |                      `string`                       |                 |