docs: alibaba in readme

README.md

@@ -19,6 +19,7 @@ Multiple people and organizations are joining efforts to create a single Externa
 - [IBM Cloud Secrets Manager](https://external-secrets.io/provider-ibm-secrets-manager/)
 - [Yandex Lockbox](https://external-secrets.io/provider-yandex-lockbox/)
 - [Gitlab Project Variables](https://external-secrets.io/provider-gitlab-project-variables/)
+- [Alibaba Cloud KMS](https://www.alibabacloud.com/product/kms) (Docs still missing, PRs welcomed!)
 
 ## Stability and Support Level
 
@@ -39,6 +40,7 @@ Multiple people and organizations are joining efforts to create a single Externa
 | [IBM SM](https://external-secrets.io/provider-ibm-secrets-manager/) |   alpha   |   @knelasevero @sebagomez @ricardoptcosta  |
 | [Yandex Lockbox](https://external-secrets.io/provider-yandex-lockbox/) |   alpha   |   @AndreyZamyslov @knelasevero          |
 | [Gitlab Project Variables](https://external-secrets.io/provider-gitlab-project-variables/) |   alpha   |   @Jabray5          |
+| Alibaba Cloud KMS                                                    |   alpha   |            @ElsaChelala                   |
 
 ## Documentation