Update audit.adoc by adding softstack (#1499)

adding softstack to starknet auditors.

Co-authored-by: Raz Landau <[email protected]>

Author: softstackio

components/Starknet/modules/tools/pages/audit.adoc

@@ -64,7 +64,11 @@ https://osec.io/[OtterSec^] is a blockchain security company with a holistic and
 
 == PeckShield
 
-https://peckshield.com/[PeckShield^] is a blockchain security company which aims to elevate the security, privacy, and usabili
+https://peckshield.com/[PeckShield^] is a blockchain security company that provides comprehensive security audits, threat monitoring and prevention, penetration testing and emergency response, and more.
+
+== Softstack
+
+https://softstack.io/[softstack^] is a leading Web3 cybersecurity and software development firm since 2017, providing smart contract audits, regulatory compliance solutions, and enterprise-grade penetration testing.
 
 == Trail of Bits