Merge pull request #76765 from jeana-redhat/fix-index-page-link

remove extra slash from xref

Author: jeana-redhat

machine_management/index.adoc

@@ -99,7 +99,7 @@ You can automatically scale your {product-title} cluster to ensure flexibility f
 
 [id="machine-mgmt-intro-add-for-upi_{context}"]
 == Adding compute machines on user-provisioned infrastructure
-User-provisioned infrastructure is an environment where you can deploy infrastructure such as compute, network, and storage resources that host the {product-title}. You can xref:../machine_management//user_infra/adding-compute-user-infra-general.adoc#adding-compute-user-infra-general[add compute machines] to a cluster on user-provisioned infrastructure during or after the installation process.
+User-provisioned infrastructure is an environment where you can deploy infrastructure such as compute, network, and storage resources that host the {product-title}. You can xref:../machine_management/user_infra/adding-compute-user-infra-general.adoc#adding-compute-user-infra-general[add compute machines] to a cluster on user-provisioned infrastructure during or after the installation process.
 
 [id="machine-mgmt-intro-add-rhel_{context}"]
 == Adding RHEL compute machines to your cluster