tls13: Fix/Improve comments

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 30113d3..bccfbb2 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -665,21 +665,21 @@
 #if defined(MBEDTLS_SSL_CLI_C)
     /** Minimum TLS version to be negotiated.
      *
-     *  It is set up in the ClientHello writing preparation stage and used
-     *  throughout the ClientHello writing. Not relevant anymore as soon as
-     *  the protocol version has been negotiated thus as soon as the
-     *  ServerHello is received.
-     *  For a fresh handshake not linked to any previous handshake, it is
-     *  equal to the configured minimum minor version to be negotiated. When
-     *  renegotiating or resuming a session, it is equal to the previously
-     *  negotiated minor version.
+     * It is set up in the ClientHello writing preparation stage and used
+     * throughout the ClientHello writing. Not relevant anymore as soon as
+     * the protocol version has been negotiated thus as soon as the
+     * ServerHello is received.
+     * For a fresh handshake not linked to any previous handshake, it is
+     * equal to the configured minimum minor version to be negotiated. When
+     * renegotiating or resuming a session, it is equal to the previously
+     * negotiated minor version.
      *
-     *  There is no maximum TLS version field in this handshake context.
-     *  From the start of the handshake, we need to define a current protocol
-     *  version for the record layer which we define as the maximum TLS
-     *  version to be negotiated. The `tls_version` field of the SSL context is
-     *  used to store this maximum value until it contains the actual
-     *  negotiated value.
+     * There is no maximum TLS version field in this handshake context.
+     * From the start of the handshake, we need to define a current protocol
+     * version for the record layer which we define as the maximum TLS
+     * version to be negotiated. The `tls_version` field of the SSL context is
+     * used to store this maximum value until it contains the actual
+     * negotiated value.
      */
     mbedtls_ssl_protocol_version min_tls_version;
 #endif