HSEC-2023-0002: fix typo, add related id

advisories/hackage/biscuit-haskell/HSEC-2023-0002.md

@@ -4,6 +4,7 @@ id = "HSEC-2023-0002"
 cwe = [347]
 keywords = ["crypto"]
 aliases = ["CVE-2022-31053"]
+related = ["GHSA-75rw-34q6-72cr"]
 
 [[affected]]
 package = "biscuit-haskell"
@@ -24,7 +25,7 @@ url = "https://github.com/biscuit-auth/biscuit/security/advisories/GHSA-75rw-34q
 # Improper Verification of Cryptographic Signature
 
 The Biscuit specification version 1 contains a vulnerable algorithm that allows
-malicious actors to forge valid ?-signatures. Such an attack would allow an
+malicious actors to forge valid Γ-signatures. Such an attack would allow an
 attacker to create a token with any access level. The version 2 of the
 specification mandates a different algorithm than gamma signatures and as such
 is not affected by this vulnerability.