📝 Updates the RELEASES.md

Author: bernardbr

RELEASES.md

@@ -10,4 +10,8 @@
 
 - Adjusts the nuget package; 
 - Adds optional ILogger to the DigestAuthenticator constructor;
-- Adds optional request timeout to the DigestAuthenticator constructor;
+- Adds optional request timeout to the DigestAuthenticator constructor;
+
+## v1.6.0
+
+- GetDigestAuthHeader should inherit proxy;