Update docs/release-notes/changelog/v6.0.x.rst

Co-authored-by: Jeff Squyres <[email protected]>
Signed-off-by: Edgar Gabriel <[email protected]>

Author: edgargabriel

docs/release-notes/changelog/v6.0.x.rst

@@ -43,7 +43,7 @@ Open MPI version v6.0.0
 
 - Extended the functionality of the accelerator framework to support
   intra-node device-to-device transfers for AMD and NVIDIA GPUs
-  (independent of UCX or libfabric).
+  (independent of UCX or Libfabric).
 
 - Added support for MPI sessions when using UCX.