fix review comment.

Signed-off-by: Tomoya Fujita <[email protected]>

Author: fujitatomoya

source/Concepts/Intermediate/About-Composition.rst

@@ -55,7 +55,7 @@ As of now, the following generic component container types are available:
   * Component container that uses a dedicated executor for each component: either ``SingleThreadedExecutor`` (default) or ``MultiThreadedExecutor``.
 
 For more information about the types of executors, see the :ref:`TypesOfExecutors`.
-For more information about the option of each component container, see :ref:`ComponentContainerTypes` in the composition tutorial.
+For more information about the options of each component container, see :ref:`ComponentContainerTypes` in the composition tutorial.
 
 Writing a Component
 -------------------