fix the link to input-iframe.md

docs/user-docs/annotation.md

@@ -1294,4 +1294,4 @@ The following attributes can be used to manipulate the presentation settings of
 - `array_options`: Applicaple only to read-only non-filter context of `visible-columns` annotation. This property is meant to be an object of properties that control the display of `array` or `array_d` aggregate column. These options will only affect the display (and templating environment) and have no effect on the generated ERMrest query. The available options are:
     - `order`: An alternative sort method to apply when a client wants to semantically sort by key values. It follows the same syntax as `column_order`. In scalar array aggregate, you cannot sort based on other columns values, you can only sort based on the scalar value of the column.
     - `max_length`: `<number>` A number that defines the maximum number of elements that should be displayed.
-- `input_iframe`: Applicaple only to entry contexts. A JSON object that describes the settings for showing "input iframe" in entry apps. Please refer to here for more information about this property. c
+- `input_iframe`: Applicaple only to entry contexts. A JSON object that describes the settings for showing "input iframe" in entry apps. Please refer to the [input iframe document](input-iframe.md) for more information about this property.