diff --git a/index.html b/index.html
index 4f18d73..b2071b1 100644
--- a/index.html
+++ b/index.html
@@ -2,7 +2,6 @@
 <html>
 	<head>
 		<meta charset="utf-8"/>
-		<meta charset="utf-8" />
 		<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 		<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0"/>
 		<meta name="robots" content="all">
@@ -31,7 +30,7 @@
 					<div class="mod-head">
 						<div class="bd">
 							<a class="btn btn-blue" href="/relationship/vue/" target="_blank">手机版</a>
-							<a class="btn" href="https://github.com/mumuy/relationship/" target="_blank">Github</a>
+							<a class="btn" href="https://github.com/mumuy/relationship/" rel="nofollow" target="_blank">Github</a>
 							<a class="btn" href="/">返回首页</a>
 						</div>
 					</div>
