c0888def50
add proxy header to nginx config example
```
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
```
Signed-off-by: rock2dust <[email protected]>
Signed-off-by: rock2dust <[email protected]>
Co-authored-by: Lunny Xiao <[email protected]>