Update QUIC_CREDENTIAL_CONFIG.md
@@ -62,7 +62,7 @@ Only valid for OpenSSL.
`QUIC_CREDENTIAL_TYPE_CERTIFICATE_PKCS12`
Provide an in-memory ASN.1 blob of a PKCS12 (PFX) certificate and private, with optional private key password, pointed to by the `CertificatePkcs12` member.
-Not currently supported.
+Only valid for OpenSSL.
#### `Flags`
