dev_1.0.0_xuxt_2 更新反向代理，打包镜像，以及README文档 (#28)

Co-authored-by: xiuting.xu <xiutingxt.xu@gmail.com>
Reviewed-on: #28
Reviewed-by: yuyr <yuyr@zgclab.edu.cn>
Reviewed-by: huhy <husteryezi@163.com>
Reviewed-by: sundapeng <sundp@mail.zgclab.edu.cn>

src/web/build_tools/proxy/conf.d/metric.conf

@@ -4,16 +4,18 @@ server {
     server_name prometheus.metric.argus.com;
 
     location / {
-        proxy_pass http://prom.metric.argus.com;
+        set $prom_backend http://prom.metric.argus.com:9090;
+        proxy_pass $prom_backend;
     }
 }
 
-# # Grafana
-# server {
-#     listen 80;
-#     server_name grafana.metric.argus.com;
+# Grafana
+server {
+    listen 80;
+    server_name grafana.metric.argus.com;
 
-#     location / {
-#         proxy_pass http://grafana.metric.argus.com;
-#     }
-# }
+    location / {
+        set $grafana_backend http://grafana.metric.argus.com:3000;
+        proxy_pass $grafana_backend;
+    }
+}