pipelines: filters: ecs: Update based on suggestions

Co-authored-by: Adam Locke <adam.locke@chronosphere.io>
Signed-off-by: Doriann Corlouër <RaJiska@users.noreply.github.com>

Author: RaJiska

pipeline/filters/ecs-metadata.md

@@ -152,8 +152,9 @@ This examples shows a use case for the `Cluster_Metadata_Only` option- attaching
 
 #### Example 4: Attach task metadata using container ID field
 
-Attaches the cluster metadata, as well as task metadata using the already populated field `container_id` containing the
-container ID to query the ECS introspection endpoint. In this configuration the tag can be set to anything.
+Attaches the cluster metadata and task metadata using the populated `container_id`
+field, which includes the container ID to query the ECS introspection endpoint. In this
+configuration the tag can be set to anything.
 
 ```text
 [INPUT]