fixed hosts file with 56 series

Author: initcron

kubernetes/vagrant-kube-cluster/hosts

@@ -1,7 +1,7 @@
 127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
 ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
 
-192.168.12.10  kube-01
-192.168.12.11  kube-02
-192.168.12.12  kube-03
+192.168.56.101  kube-01
+192.168.56.102  kube-02
+192.168.56.103  kube-03