Fixup changelog following 23.7.3 release (#5954)

Signed-off-by: Simon Dudley <simon.dudley@consensys.net>

CHANGELOG.md

@@ -2,17 +2,6 @@
 
 ## Next release
 
-### Breaking Changes
-
-### Additions and Improvements
-
-### Bug Fixes
-
-### Download Links
-
-
-## 23.7.3
-
 ### Breaking Changes
 - Removed support for Kotti network (ETC) [#5816](https://github.com/hyperledger/besu/pull/5816)
 - Layered transaction pool implementation is now stable and enabled by default, so the following changes to experimental options have been done [#5772](https://github.com/hyperledger/besu):
@@ -23,7 +12,6 @@
 - Add access to an immutable world view to start/end transaction hooks in the tracing API[#5836](https://github.com/hyperledger/besu/pull/5836)
 - Layered transaction pool implementation is now stable and enabled by default. If you want still to use the legacy implementation, use `--tx-pool=legacy` [#5772](https://github.com/hyperledger/besu)
 - Tune G1GC to reduce Besu memory footprint, and new `besu-untuned` start scripts to run without any specific G1GC flags [#5879](https://github.com/hyperledger/besu/pull/5879)
-- Update Holešky config for re-launch [#5890](https://github.com/hyperledger/besu/pull/5890)
 
 ### Bug Fixes
 - do not create ignorable storage on revert storage-variables subcommand [#5830](https://github.com/hyperledger/besu/pull/5830) 
@@ -32,6 +20,16 @@
 ### Download Links
 
 
+## 23.7.3
+
+### Additions and Improvements
+- Update Holešky config for re-launch [#5890](https://github.com/hyperledger/besu/pull/5890)
+
+### Download Links
+https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/23.7.3/besu-23.7.3.tar.gz / sha256: c12ca6a9861557e0bf8f27076f8c8afcce6f1564687e5f02bfdc96c2b18846ff
+https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/23.7.3/besu-23.7.3.zip / sha256: 136596454f647c706130e3e2983bdbb4a1cbfaf2bbf6e999466754f9213c11f6
+
+
 ## 23.7.2
 
 ### Additions and Improvements