Update index.html (#2439)

site/public/weather/index.html

@@ -3,7 +3,7 @@
 <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
 <meta http-equiv="X-UA-Compatible" content="ie=edge">
 <link rel="shortcut icon" href="https://mdn.alipayobjects.com/huamei_rzapb5/afts/img/A*LWejS63Sc44AAAAAAAAAAAAADqWCAQ/original">
-<title>春运路线天气地图</title>
+<title>未来天气路径地图</title>
 <script>var _hmt = _hmt || [];
     (function() {
     var hm = document.createElement("script");
@@ -16,4 +16,4 @@
 <div id="root"></div>
 <script src="/weather/umi.4c6db688.js"></script>
 
-</body></html>
+</body></html>