Fix list of what's common to TLS 1.2 and 1.3
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/docs/use-psa-crypto.md b/docs/use-psa-crypto.md
index c012658..8261b8b 100644
--- a/docs/use-psa-crypto.md
+++ b/docs/use-psa-crypto.md
@@ -16,9 +16,10 @@
Scope: `MBEDTLS_USE_PSA_CRYPTO` has no effect on the parts of the code that
are specific to TLS 1.3; those parts always use PSA Crypto. The parts of the
-TLS 1.3 code that are common with TLS 1.2, however, follow this option (this
-is currently just the record protection code, and X.509). You need to enable
-`MBEDTLS_USE_PSA_CRYPTO` if you want TLS 1.3 to use PSA everywhere.
+TLS 1.3 code that are common with TLS 1.2, however, follow this option;
+currently this is the record protection code, computation of the running
+handshake hash, and X.509). You need to enable `MBEDTLS_USE_PSA_CRYPTO` if you
+want TLS 1.3 to use PSA everywhere.
New APIs / API extensions
-------------------------
