Docs: Fix typo in task docs (#2524)

Author: andergtk

docs/api/task.md

@@ -61,7 +61,7 @@ Since any registered task can be run from the command line, avoid using spaces i
 
 | parameter | type | note |
 |:--------------:|:------:|-------|
-| taskName | string | An alias for the task function within the the task system. Not needed when using named functions for `taskFunction`. |
+| taskName | string | An alias for the task function within the task system. Not needed when using named functions for `taskFunction`. |
 | taskFunction<br />**(required)** | function | A [task function][task-concepts] or composed task - generated by `series()` and `parallel()`. Ideally a named function. [Task metadata][task-metadata-section] can be attached to provide extra information to the command line. |
 
 ### Returns