correct PR id

Author: cedricvincentcuaz

RELEASES.md

@@ -21,7 +21,7 @@
 - Fix line search evaluating cost outside of the interpolation range (Issue #502, PR #504)
 - Lazily instantiate backends to avoid unnecessary GPU memory pre-allocations on package import (Issue #516, PR #520)
 - Handle documentation and warnings when integers are provided to (f)gw solvers based on cg (Issue #530, PR #559)
-- Correct independence of `fgw_barycenters` to `init_C` and `init_X` (Issue #547, PR #564)
+- Correct independence of `fgw_barycenters` to `init_C` and `init_X` (Issue #547, PR #566)
 
 ## 0.9.1
 *August 2023*