修复文档中镜像与IP地址错误

README.md

@@ -4,7 +4,7 @@
 
 所有节点填写网络映射
 ```
-echo "192.168.64.10 controller" >> /etc/hosts
+echo "192.168.105.10 controller" >> /etc/hosts
 ```
 所有节点永久关闭 selinux，永久关闭 firewalld，永久关闭 NetworkManager
 ```
@@ -24,7 +24,7 @@ mv /etc/yum.repos.d/* /tmp/
 ```
 [root@controller ~]$ mkdir -p /opt/{centos,extras,openstack}
 
-[root@controller ~]$ mount -o loop /root/centos7-1804.iso /mnt/
+[root@controller ~]$ mount -o loop /root/CentOS-7-x86_64-Everything-1804.iso /mnt/
 [root@controller ~]$ cp -rvf /mnt/* /opt/centos/
 [root@controller ~]$ umount /mnt/