add note about naming of IB interface to the documentation about adding nodes using warewulf

Author: migueldiascosta

docs/install/templates/provisioner/warewulf/deploy-add-nodes.md.j2

@@ -23,6 +23,14 @@ done
 <!-- ohpc_fi -->
 <!-- ohpc_end -->
 
+::: {.tip}
+**Note:** If, once you boot the nodes, you find that the IB interface was
+renamed to something other than ib0 and hence not assigned the given IP,
+you can fix it by setting --type="Infiniband" and --hwaddr to the last
+6 bytes of the hardware address, so that the udev.netname overlay can set
+the persistent interface name.
+:::
+
 Finally, rebuild the image to incorporate any optional packages installed into
 the chroot during customization, then rebuild the overlays and update the
 Warewulf configuration.