Fix docs to reflect supported CRDs (#285)

Co-authored-by: M00nF1sh <[email protected]>

docs/index.md

@@ -7,7 +7,8 @@
 
 ## AWS App Mesh Controller For K8s
 
-AWS App Mesh Controller For K8s is a controller to help manage [App Mesh](https://aws.amazon.com/app-mesh/) resources for a Kubernetes cluster.  The controller watches custom resources for changes and reflects those changes into the [App Mesh API](https://docs.aws.amazon.com/app-mesh/latest/APIReference/Welcome.html). It is accompanied by the deployment of three custom resource definitions ([CRDs](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/)): meshes, virtualnodes, and virtualservices.  These map to App Mesh API objects which the controller manages for you.
+AWS App Mesh Controller For K8s is a controller to help manage [App Mesh](https://aws.amazon.com/app-mesh/) resources for a Kubernetes cluster and injecting sidecars to Kubernetes [Pods](https://kubernetes.io/docs/concepts/workloads/pods/pod/).  The controller watches custom resources for changes and reflects those changes into the [App Mesh API](https://docs.aws.amazon.com/app-mesh/latest/APIReference/Welcome.html). The controller maintains the custom resources ([CRDs](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/)): meshes, virtualnodes, virtualrouters and virtualservices.  The custom resources map to App Mesh API objects.
+
 
 ## Documentation
 Checkout our [Live Docs](https://aws.github.io/aws-app-mesh-controller-for-k8s/)!