Update Weave Net link to supported fork

(rajch is the maintainer in charge of Weave Net now)

Ref: #45202 (comment)

Signed-off-by: Kingdon B <[email protected]>
Signed-off-by: Kingdon Barrett <[email protected]>

Author: kingdonb

content/en/docs/concepts/cluster-administration/addons.md

@@ -82,7 +82,7 @@ installation instructions. The list does not try to be exhaustive.
 * [Spiderpool](https://github.com/spidernet-io/spiderpool) is an underlay and RDMA
   networking solution for Kubernetes. Spiderpool is supported on bare metal, virtual machines,
   and public cloud environments.
-* [Weave Net](https://www.weave.works/docs/net/latest/kubernetes/kube-addon/)
+* [Weave Net](https://github.com/rajch/weave#using-weave-on-kubernetes)
   provides networking and network policy, will carry on working on both sides
   of a network partition, and does not require an external database.