Add 77wallet Security Audit Report

Author: kongbest

open-report-V2/README.md

@@ -32,6 +32,8 @@ Some open security audit reports of SlowMist.
 
 
 ### Blockchain application security audit open reports
+- [77wallet (Android) Security Audit Report](https://github.com/slowmist/Knowledge-Base/tree/master/open-report-V2/blockchain-application/77wallet%20(Android)%20-%20SlowMist%20Audit%20Report_en-us.pdf)
+- [77wallet (iOS) Security Audit Report](https://github.com/slowmist/Knowledge-Base/tree/master/open-report-V2/blockchain-application/77wallet%20(iOS)%20-%20SlowMist%20Audit%20Report_en-us.pdf)
 - [OneKey Classic 1s Hardware Wallet Security Audit Report](https://github.com/slowmist/Knowledge-Base/tree/master/open-report-V2/blockchain-application/SlowMist%20Audit%20Report%20-%20OneKey%20Classic%201s_en-us.pdf)
 - [OneKey Pro Hardware Wallet Security Audit Report](https://github.com/slowmist/Knowledge-Base/tree/master/open-report-V2/blockchain-application/SlowMist%20Audit%20Report%20-%20OneKey%20Pro_en-us.pdf)
 - [Rabby Extension Wallet Security Audit Report](https://github.com/slowmist/Knowledge-Base/tree/master/open-report-V2/blockchain-application/SlowMist%20Audit%20Report%20-%20Rabby%20Extension%20Wallet_en-us.pdf)