release notes for 1.13.3 (#11170)

* release notes for 1.13.3

* Update content/en/news/releases/1.13.x/announcing-1.13.3/index.md

Co-authored-by: lei-tang <32078630+lei-tang@users.noreply.github.com>

* Update content/en/news/releases/1.13.x/announcing-1.13.3/index.md

* rewording

* spelling

Co-authored-by: lei-tang <32078630+lei-tang@users.noreply.github.com>

content/en/news/releases/1.13.x/announcing-1.13.3/index.md

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+---
+title: Announcing Istio 1.13.3
+linktitle: 1.13.3
+subtitle: Patch Release
+description: Istio 1.13.3 patch release.
+publishdate: 2022-04-18
+release: 1.13.3
+aliases:
+    - /news/announcing-1.13.3
+---
+
+This release contains bug fixes to improve robustness and some additional configuration support.
+This release note describes what's different between Istio 1.13.2 and 1.13.3.
+
+{{< relnote >}}
+
+## Changes
+
+- **Added** support for skipping the initial installation of CNI entirely.
+
+- **Added** values to the Istio Pilot Helm charts for configuring affinity rules and toleration on the Deployment.
+  Can be used for better placement of Istio pilot workloads.
+
+- **Fixed** an issue where platform detection is taking 5 seconds on Minikube.
+  ([Issue #37832](https://github.com/istio/istio/issues/37832))
+
+- **Fixed** an issue where removing a HTTP filter is not working properly.
+
+- **Fixed** an issue causing some cross-namespace VirtualService to be incorrectly ignored after upgrading to Istio 1.12+.
+  ([Issue #37691](https://github.com/istio/istio/issues/37691))