Update product_docs/docs/pgd/5/node_management/physical_standby_nodes…

….mdx

Co-authored-by: Josh Heyer <[email protected]>

product_docs/docs/pgd/5/node_management/physical_standby_nodes.mdx

@@ -65,7 +65,7 @@ the primary:
 
 -   Assume control of the same IP address or hostname as the primary.
 -   Inform the EDB Postgres Distributed cluster of the change in address by executing the
-    [bdr.alter_node_interface](reference/nodes-management-interfaces/#bdralter_node_interface) function on all other PGD nodes.
+    [bdr.alter_node_interface](../reference/nodes-management-interfaces/#bdralter_node_interface) function on all other PGD nodes.
 
 Once this is done, the other PGD nodes reestablish communication
 with the newly promoted standby -> primary node. Since replication