nixos/nginx: expand proxyResolveWhileRunning's description

        type = types.bool;

        default = false;

        description = ''

          Resolves domains of proxyPass targets at runtime

          and not only at start, you have to set

          services.nginx.resolver, too.

          Resolves domains of proxyPass targets at runtime and not only at startup.

          This can be used as a workaround if nginx fails to start because of not-yet-working DNS.

          :::{.warn}

          `services.nginx.resolver` must be set for this option to work.

          :::

        '';

      };