docs: release notes improvments

Author: NickIliev

release-history.md

@@ -25,7 +25,7 @@ position: 300
 
 - Added support for TLS 1.3
 - Support for HTTP/2 through the `EnableHTTP2` configuration option.
-- Support for adding custom TLS provider through the `UseClientTlsProvider` configuration option.
+- Support for adding a custom TLS provider through the `UseClientTlsProvider` configuration option.
 - The `SessionMetrics` has additional information for different timings and sizes throughout the session lifecycle.
 - The SAZ archive now contains additional information for timings and sizes.