Forgot two ID uppercasings

Co-authored-by: Tulir Asokan <tulir@maunium.net>

config/config.go

@@ -25,7 +25,7 @@ type Config struct {
 	*bridgeconfig.BaseConfig `yaml:",inline"`
 
 	SegmentKey    string `yaml:"segment_key"`
-	SegmentUserId string `yaml:"segment_user_id"`
+	SegmentUserID string `yaml:"segment_user_id"`
 
 	Metrics struct {
 		Enabled bool   `yaml:"enabled"`

main.go

@@ -93,7 +93,7 @@ func (br *WABridge) Init() {
 
 	Segment.log = br.Log.Sub("Segment")
 	Segment.key = br.Config.SegmentKey
-	Segment.userID = br.Config.SegmentUserId
+	Segment.userID = br.Config.SegmentUserID
 	if Segment.IsEnabled() {
 		Segment.log.Infoln("Segment metrics are enabled")
 		if Segment.userID != "" {