```

docs(clipboard): 添加剪贴板功能演示图片

添加了剪贴板功能的操作演示截图，用于说明功能使用方法
```

Assets/Script/WerewolfSkill.cs

@@ -0,0 +1,41 @@
+using UnityEngine;
+
+public class WerewolfSkill : UnitSkill
+{
+    [Header("狼嚎效果")]
+    [Min(0f)]
+    public float attackSpeedIncrease = 0.2f;
+
+    [Min(0f)]
+    public float duration = 5f;
+
+    private bool buffActive;
+    private float buffEndTime;
+
+    public override void ReleaseSkill()
+    {
+        ApplyHowlBuff();
+    }
+
+    private void ApplyHowlBuff()
+    {
+        if (buffActive)
+        {
+            buffEndTime = Time.time + duration;
+            return;
+        }
+
+        buffActive = true;
+        buffEndTime = Time.time + duration;
+        unit.MultiplyAttackSpeed(1f + attackSpeedIncrease, 2f);
+    }
+
+    private void Update()
+    {
+        if (buffActive && Time.time >= buffEndTime)
+        {
+            buffActive = false;
+            unit.MultiplyAttackSpeed(1f / (1f + attackSpeedIncrease), 2f);
+        }
+    }
+}