diff --git a/README.md b/README.md
index 8b982ef..ba3e4b6 100644
--- a/README.md
+++ b/README.md
@@ -275,6 +275,7 @@ sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
 sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*</pre></code>
 If script notices any error like in "# Check Dependence", please execute it again!
 <br />
+<br />
 If you have enabled and assigned IPv6 address after server had been created in the website panel of some cloud providers like Oracle etc. but IPv6 is still invalid in the original system, you can try "dhclient" command to enable IPv6, the same as IPv4:
 <pre><code>dhclient -6 "network adapter name"</pre></code>
 <pre><code>dhclient -4 "network adapter name"</pre></code>