fix xref

Author: JPryce-Aklundh

modules/ROOT/pages/clustering/setup/routing.adoc

@@ -42,7 +42,7 @@ Client-side routing means that the application decides which cluster server to s
 Typically, this ensures that write operations are sent to the server currently acting as the `writer` for the target database, while read operations are sent to other servers.
 
 Client-side routing is based on getting a routing table from a cluster server, and then using that information to make the routing decisions.
-Use the xref:procedures.adoc#procedure_dbms_routing_getRoutingTable[`dbms.routing.getRoutingTable()`] procedure to obtain a routing table.
+Use the xref:procedures/built-in-procedures.adoc#procedure_dbms_routing_getRoutingTable[`dbms.routing.getRoutingTable()`] procedure to obtain a routing table.
 
 A routing table contains information about the servers and their roles as `writers`, `readers`, and `routers` for a specific database.
 There is usually one `writer`, though there may be none if the database is read-only or unhealthy.