add new chinese translations

pages.zh/common/docker-diff.md

@@ -0,0 +1,12 @@
+# docker diff
+
+> 检查容器文件系统上文件或目录的更改。
+> 更多信息：<https://docs.docker.com/reference/cli/docker/container/diff/>
+
+- 检查自容器创建以来的更改：
+
+`docker diff {{container}}`
+
+- 显示帮助信息：
+
+`docker diff --help`