readme error page

web/static/page/error.html

@@ -2,9 +2,9 @@
 <html lang="en">
 <head>
     <meta charset="UTF-8">
-    <title>easyProxy error</title>
+    <title>nps error</title>
 </head>
 <body>
-404 not found,power by easyProxy
+404 not found,power by <a href="//github.com/cnlh/nps">nps</a>
 </body>
 </html>