feat: 新增K8S集群中服务接入方式 (#5322)

* feat: add k8s configmap user guide

* feat: add k8s-configmap-user-guide english version

docs/en/_sidebar.md

@@ -31,6 +31,7 @@
   - [PHP Client Usage Guide](en/client/php-sdks-user-guide.md)
   - [C Client Usage Guide](en/client/c-sdks-user-guide.md)
   - [Rust Client Usage Guide](en/client/rust-sdks-user-guide.md)
+  - [K8S ConfigMap Integration Usage Guide](en/client/k8s-configmap-user-guide.md)
   - [HTTP API Guide](en/client/other-language-client-user-guide.md)
 
 - Extension Guide

docs/en/client/k8s-configmap-user-guide.md

@@ -0,0 +1,5 @@
+### Apollo K8S ConfigMap Integration
+
+Automatically sync Apollo configurations to K8S ConfigMap.
+
+Project URL: [apollo-configmap](https://github.com/adamswanglin/apollo-configmap)

docs/zh/_sidebar.md

@@ -31,6 +31,7 @@
   - [PHP 客户端使用指南](zh/client/php-sdks-user-guide.md)
   - [C 客户端使用指南](zh/client/c-sdks-user-guide.md)
   - [Rust 客户端使用指南](zh/client/rust-sdks-user-guide.md)
+  - [K8S ConfigMap接入指南](zh/client/k8s-configmap-user-guide.md)
   - [HTTP API 接入指南](zh/client/other-language-client-user-guide.md)
 
 - 扩展开发

docs/zh/client/k8s-configmap-user-guide.md

@@ -0,0 +1,5 @@
+### Apollo K8S ConfigMap接入
+
+自动同步 Apollo 配置到 K8S ConfigMap 中
+
+项目地址：[apollo-configmap](https://github.com/adamswanglin/apollo-configmap)