final 3.1.0 changelog tweaks (#709)

Signed-off-by: Craig Disselkoen <cdiss@amazon.com>

cedar-policy-cli/CHANGELOG.md

@@ -2,10 +2,14 @@
 
 ## 3.1.0
 
+Now uses Cedar language version 3.1.0.
+
 ### Added
 
-- Added support for the human-readable schema format (`--schema-format human` when a schema is needed). The default schema format is still JSON for backward compatibility.
-- Added command `translate-schema` that translates a schema in the JSON format to its human-readable format and vice versa (except comments).
+- Added support for the human-readable schema format (`--schema-format human`
+  when a schema is needed). The default schema format is still JSON for backward
+  compatibility.  - Added command `translate-schema` that translates a schema in
+  the JSON format to its human-readable format and vice versa (except comments).
 - The `-p`/`--policies` flag can now be omitted across all subcommands where it
   is present. If the flag is omitted, policies will be read from `stdin`.
 - `--policy-format` flag to many subcommands, allowing you to pass policies in

cedar-policy/CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [3.1.0] - coming soon
+## [3.1.0] - 2024-03-08
 Cedar Language Version: 3.1.0
 
 ### Added