add more config option documentation

extensions/thumbnails/pkg/config/debug.go

@@ -5,5 +5,5 @@ type Debug struct {
 	Addr   string `yaml:"addr" env:"THUMBNAILS_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed."`
 	Token  string `yaml:"token" env:"THUMBNAILS_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint"`
 	Pprof  bool   `yaml:"pprof" env:"THUMBNAILS_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling"`
-	Zpages bool   `yaml:"zpages" env:"THUMBNAILS_DEBUG_ZPAGES" desc:"Enables zpages, which can  be used for collecting and viewing traces in-me"`
+	Zpages bool   `yaml:"zpages" env:"THUMBNAILS_DEBUG_ZPAGES" desc:"Enables zpages, which can  be used for collecting and viewing traces in-memory."`
 }

extensions/thumbnails/pkg/config/tracing.go

@@ -3,7 +3,7 @@ package config
 // Tracing defines the available tracing configuration.
 type Tracing struct {
 	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;THUMBNAILS_TRACING_ENABLED" desc:"Enable tracing."`
-	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;THUMBNAILS_TRACING_TYPE" desc:"The tracing type."`
+	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;THUMBNAILS_TRACING_TYPE" desc:"The type of tracing. Defaults to \"\", which is the same as \"jaeger\". Allowed tracing types are \"jaeger\" and \"\" as of now."`
 	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;THUMBNAILS_TRACING_ENDPOINT" desc:"The endpoint of the tracing service."`
 	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;THUMBNAILS_TRACING_COLLECTOR" desc:"The tracing collector."`
 }