update readme

helm/aws-load-balancer-controller/README.md

@@ -177,6 +177,7 @@ The default values set by the application itself can be confirmed [here](https:/
 | `nodeSelector`                                 | Node labels for controller pod assignment                                                                | `{}`                                                                               |
 | `tolerations`                                  | Controller pod toleration for taints                                                                     | `{}`                                                                               |
 | `affinity`                                     | Affinity for pod assignment                                                                              | `{}`                                                                               |
+| `topologySpreadConstraints`                    | Topology Spread Constraints for pod assignment                                                           | `{}`                                                                               |
 | `podAnnotations`                               | Annotations to add to each pod                                                                           | `{}`                                                                               |
 | `podLabels`                                    | Labels to add to each pod                                                                                | `{}`                                                                               |
 | `rbac.create`                                  | if `true`, create and use RBAC resources                                                                 | `true`                                                                             |