Fix typo in comment in task.h (#244)

diff --git a/include/task.h b/include/task.h
index 66c99c5..cbf412b 100644
--- a/include/task.h
+++ b/include/task.h
@@ -1638,7 +1638,7 @@
      * configSUPPORT_STATIC_ALLOCATION is set.  For more information see this URI: https://www.FreeRTOS.org/a00110.html#configSUPPORT_STATIC_ALLOCATION
      *
      * @param ppxIdleTaskTCBBuffer A handle to a statically allocated TCB buffer
-     * @param ppxIdleTaskStackBuffer A handle to a statically allocated Stack buffer for thie idle task
+     * @param ppxIdleTaskStackBuffer A handle to a statically allocated Stack buffer for the idle task
      * @param pulIdleTaskStackSize A pointer to the number of elements that will fit in the allocated stack buffer
      */
     void vApplicationGetIdleTaskMemory( StaticTask_t ** ppxIdleTaskTCBBuffer,