optimize description

Author: wangqi

index.html

@@ -8,7 +8,7 @@
 
     <meta id="viewport" name="viewport"
           content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui">
-    <meta name="description" content="Official website of a root android app(cn.wq.myandroidtools)">
+    <meta name="description" content="A root app (cn.wq.myandroidtools) helps you manage your android device">
     <meta name="author" content="wangqi060934">
     <meta name="apple-mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-status-bar-style" content="black">