Fix two typos in comments
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 706e272..a3b514c 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -2470,7 +2470,7 @@
* with \c mbedtls_ssl_read()), not handshake messages.
* With DTLS, this affects both ApplicationData and handshake.
*
- * \note This sets the maximum length for a record's paylaod,
+ * \note This sets the maximum length for a record's payload,
* excluding record overhead that will be added to it, see
* \c mbedtls_ssl_get_record_expansion().
*