Fix release notes formatting (#1529)

Author: gitbuda

pages/release-notes.mdx

@@ -180,7 +180,7 @@ NVIDIA tooling. [#3709](https://github.com/memgraph/memgraph/pull/3709)
 - Added cuGraph MAGE images to regular builds. Users can now pull
 `memgraph/memgraph-mage:<version>-relwithdebinfo-cugraph` and run with GPU
 access for GPU-accelerated graph algorithms. Requires NVIDIA GPU with driver
->=590 and CUDA toolkit >=13.1.
+`>=590` and CUDA toolkit `>=13.1`.
 [#3723](https://github.com/memgraph/memgraph/pull/3723)
 - Fixed performance regression in all-shortest paths queries by avoiding
 expensive exception handling.
@@ -401,8 +401,6 @@ correctly for auditing and role-based logic.
 
 - Version bump to v3.7.2 to match the latest Memgraph version.
 
-## Previous releases
-
 ### Memgraph v3.7.1 - November 25th, 2025
 
 {<h4 className="custom-header">⚠️ Breaking changes</h4>}