update CHANGELOG.md for RC2 (#3247)

* update CHANGELOG.md

Signed-off-by: Karim TAAM <karim.t2am@gmail.com>

* fix

Signed-off-by: Karim TAAM <karim.t2am@gmail.com>

Co-authored-by: Sally MacFarlane <sally.macfarlane@consensys.net>

CHANGELOG.md

@@ -1,10 +1,14 @@
 # Changelog
 
-## Next RC
+## 22.1.0
+
+### 22.1.0 Breaking Changes
 
 ### Additions and Improvements
 - Genesis file parameter `blockperiodseconds` is validated as a positive integer on startup to prevent unexpected runtime behaviour [#3186](https://github.com/hyperledger/besu/pull/3186)
 
+### Bug Fixes
+
 ## 22.1.0-RC2
 
 ### 22.1.0-RC2 Breaking Changes
@@ -19,6 +23,10 @@
 - Make 'to' field optional in eth_call method according to the spec [#3177](https://github.com/hyperledger/besu/pull/3177)
 - Update to log4j 2.17.1. Resolves potential vulnerability only exploitable when using custom log4j configurations that are writable by untrusted users.
 
+### Download Links
+https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/22.1.0-RC2/besu-22.1.0-RC2.zip \ SHA256: 86c97c935d70857d210016eb73f518fddd5dcef0c7928c5ede4622bf62c69d17
+https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/22.1.0-RC2/besu-22.1.0-RC2.tar.gz \ SHA256 327c14e1829d39e65f822478b166519e781ac4714f54da39ba26d21ba5729a1e
+
 ## 21.10.6
 
 ### Bug Fixes