[chore] fix typo (open-telemetry#30281)

receiver/awscontainerinsightreceiver/design.md

@@ -11,7 +11,7 @@
 
 `awscontainerinsightreceiver` collects data from two main sources:
 * `cadvisor` 
-  * An customized `cadvisor` lib is embedded inside the receiver. The  `cadvisor` setting is tweaked for Container Insights use cases. For example, only certain metrics are collected and only certain `cgroup` is included. 
+  * A customized `cadvisor` lib is embedded inside the receiver. The  `cadvisor` setting is tweaked for Container Insights use cases. For example, only certain metrics are collected and only certain `cgroup` is included. 
   * The receiver generates Container Insights specific metrics from the raw metrics provided by `cadvisor`. The metrics are categorized as different infrastructure layers like node, node filesystem, node disk io, node network, pod, pod network, container, and container filesystem. 
   * Some pod/container related labels like podName, podId, namespace, containerName are extracted from the container spec provided by `cadvisor`. This labels will be added as resource attributes for the metrics and the AWS Container Insights processor needs those attributes to do further processing of the metrics. 
 * `k8sapiserver`