Update extra.mdx (#66)

Author: raykr

pages/docs/extra.mdx

@@ -170,6 +170,9 @@ server {
     location /qaqdmin {
         proxy_pass http://127.0.0.1:2333/proxy/qaqdmin;
     }
+    location /proxy {
+        proxy_pass http://127.0.0.1:2333/proxy;
+    }
 
     location ~* \/(feed|sitemap|atom.xml) {
         proxy_pass http://127.0.0.1:2333/$1; 
@@ -279,4 +282,4 @@ module.exports = {
 ```bash
 pnpm bundle
 pnpm prod:pm2
-```
+```