Error in reverse proxy documentation

[gl-dev]

Source:
https://airsonic.github.io/docs/install/example/raspberrypi/

Section:
"Set up a reverse proxy"

Documentation says:
proxy_set_header X-Forwarded-Host $host;

-> wrong, since playing songs and showing cover art is broken

Correction:
proxy_set_header X-Forwarded-Host $http_host;