doc: add 'icmp' tags

tasks/configure_iptables.yml

@@ -91,6 +91,7 @@
   loop: "{{ vault_iptables_input | flatten(levels=1) }}"
   notify:
     - save iptables rules
+  tags: [icmp]
 # http://shouldiblockicmp.com
 
 
@@ -125,6 +126,7 @@
   loop: "{{ vault_iptables_icmp | flatten(levels=1) }}"
   notify:
     - save iptables rules
+  tags: [icmp]
 
 # TODO: Outgoing iptables Regeln erstellen, und bloß keine vergessen!!!