Add study notes for 2025-08-20

Author: AutoBot42

brucexu-eth.md

@@ -15,6 +15,10 @@ E 卫兵
 ## Notes
 
 <!-- Content_START -->
+# 2025-08-20
+
+今天有点累，水一下打卡，未来再说
+
 # 2025-08-18
 
 # Solidity Opcode