update readme

Author: ndyakov

hitless/README.md

@@ -49,19 +49,6 @@ Config: &hitless.Config{
 - **Auto-calculated**: `10 × MaxWorkers`, capped by pool size
 - **Always capped**: Queue size never exceeds pool size
 
-## Cluster Support
-
-```go
-opt := &redis.ClusterOptions{
-    Addrs:    []string{"localhost:7000", "localhost:7001"},
-    Protocol: 3,
-    HitlessUpgrades: &redis.HitlessUpgradeConfig{
-        Mode: hitless.MaintNotificationsEnabled,
-    },
-}
-client := redis.NewClusterClient(opt)
-```
-
 ## Metrics Hook Example
 
 A metrics collection hook is available in `example_hooks.go` that demonstrates how to monitor hitless upgrade operations:
@@ -83,4 +70,3 @@ The metrics hook tracks:
 ## Requirements
 
 - **RESP3 Protocol**: Required for push notifications
-- **Redis 7.0+**: For maintenance notification support

hitless/example_hooks.go

@@ -9,7 +9,7 @@ import (
 type contextKey string
 
 const (
-	startTimeKey contextKey = "start_time"
+	startTimeKey contextKey = "notif_hitless_start_time"
 )
 
 // MetricsHook collects metrics about notification processing.
@@ -60,4 +60,4 @@ func (mh *MetricsHook) GetMetrics() map[string]interface{} {
 		"processing_times":    mh.ProcessingTimes,
 		"error_counts":        mh.ErrorCounts,
 	}
-}
+}