Add description

Author: sfc-gh-pbulawa

DESCRIPTION.md

@@ -9,6 +9,7 @@ Source code is also available at: https://github.com/snowflakedb/snowflake-conne
 # Release Notes
 - v3.16.1(TBD)
   - Added in-band OCSP exception telemetry.
+  - Fix OAuth authenticator values.
 
 - v3.16.0(July 04,2025)
   - Bumped numpy dependency from <2.1.0 to <=2.2.4.