Fix broken links
Fix broken links

Fix broken links on the system architecture page.

Change-Id: I7bffd18f629e076c8dc0372789bac9d765ee1ec0

ionutbalutoiu/ironic,dims/ironic,ionutbalutoiu/ironic,openstack/ironic,redhat-openstack/ironic,naototty/vagrant-lxc-ironic,varunarya10/ironic,faizan-barmawer/openstack_ironic,supermari0/ironic,hpproliant/ironic,bacaldwell/ironic,NaohiroTamura/ironic,rdo-management/ironic,NaohiroTamura/ironic,naterh/ironic,froyobin/ironic,ramineni/myironic,devananda/ironic,Tehsmash/ironic,debayanray/ironic_backup,SauloAislan/ironic,dims/ironic,openstack/ironic,pshchelo/ironic,citrix-openstack-build/ironic,naototty/vagrant-lxc-ironic,JioCloud/ironic,rackerlabs/ironic,pshchelo/ironic,Tan0/ironic,SauloAislan/ironic,bacaldwell/ironic,citrix-openstack-build/ironic