[zh]Update content/zh/examples/service/access/Dockerfile

Author: kinzhi

content/zh/examples/service/access/Dockerfile

@@ -1,4 +1,4 @@
 FROM nginx:1.17.3
 
 RUN rm /etc/nginx/conf.d/default.conf
-COPY frontend.conf /etc/nginx/conf.d
+COPY frontend-nginx.conf /etc/nginx/conf.d