one more doc fix for taxonomy picker

Author: AJIXuMuK

docs/documentation/docs/controls/TaxonomyPicker.md

@@ -167,7 +167,7 @@ The TaxonomyPicker control can be configured with the following properties:
 | hideDeprecatedTags | boolean | no | Specifies if deprecated tags  should be hidden |
 | placeholder | string | no | Short text hint to display in empty picker |
 | errorMessage | string | no | Static error message displayed below the picker. Use `onGetErrorMessage` to dynamically change the error message displayed (if any) based on the current value. `errorMessage` and `onGetErrorMessage` are mutually exclusive (`errorMessage` takes precedence). |
-| onGetErrorMessage | (value: IPickerTerms) => string \| Promise&lt;string&gt; | no | The method is used to get the validation error message and determine whether the input value is valid or not. Mutually exclusive with the static string `errorMessage` (it will take precedence over this).<br />When it returns string:<ul><li>If valid, it returns empty string.</li><li>If invalid, it returns the error message string to be shown below the picker.</li></ul><br />When it returns Promise&lt;string&gt;:<ul><li>The resolved value is display as error message.</li><li>The rejected, the value is thrown away.</li></ul> |
+| onGetErrorMessage | (value: IPickerTerms) => string \| Promise&lt;string&gt; | no | The method is used to get the validation error message and determine whether the picker value is valid or not. Mutually exclusive with the static string `errorMessage` (it will take precedence over this).<br />When it returns string:<ul><li>If valid, it returns empty string.</li><li>If invalid, it returns the error message string to be shown below the picker.</li></ul><br />When it returns Promise&lt;string&gt;:<ul><li>The resolved value is display as error message.</li><li>The rejected, the value is thrown away.</li></ul> |
 | required | boolean | no | Specifies if to display an asterisk near the label. Note that error message should be specified in `onGetErrorMessage` or `errorMessage` |
 
 Interface `IPickerTerm`