Apply suggestions from code review

Co-authored-by: Martin <github@diemattels.at>
Co-authored-by: Phil Davis <phil@jankaritech.com>

services/web/pkg/config/http.go

@@ -5,5 +5,5 @@ type HTTP struct {
 	Addr      string `yaml:"addr" env:"WEB_HTTP_ADDR" desc:"The bind address of the HTTP service."`
 	Namespace string `yaml:"-"`
 	Root      string `yaml:"root" env:"WEB_HTTP_ROOT" desc:"The root path of the HTTP service."`
-	CacheTTL  int    `yaml:"cache_ttl" env:"WEB_CACHE_TTL" desc:"Cache policy for ownCloud Web assets."`
+	CacheTTL  int    `yaml:"cache_ttl" env:"WEB_CACHE_TTL" desc:"Cache policy in seconds for ownCloud Web assets."`
 }