releases updated

Author: KrzakalaPaul

RELEASES.md

@@ -9,6 +9,7 @@
 - Fixed an issue with cost correction for mismatched labels in `ot.da.BaseTransport` fit methods. This fix addresses the original issue introduced PR #587 (PR #593)
 - Fix gpu compatibility of sr(F)GW solvers when `G0 is not None`(PR #596)
 - Fix doc and example for lowrank sinkhorn (PR #601)
+- Fix a sign error regarding the gradient of `ot.gromov._gw.fused_gromov_wasserstein2` and `ot.gromov._gw.gromov_wasserstein2` for the kl loss
 
 ## 0.9.2
 *December 2023*