diff --git a/README-zh.md b/README-zh.md
index 14350fc9..9eff0f97 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -1,6 +1,10 @@
 # Crawlab
 基于Celery的爬虫分布式爬虫管理平台，支持多种编程语言以及多种爬虫框架.
 
+[查看演示 Demo](http://139.129.230.98:8080)
+
+[English Documentation](https://github.com/tikazyq/crawlab/blob/master/README.md)
+
 ## 要求
 - Python3
 - MongoDB
diff --git a/README.md b/README.md
index 9cbc41de..820f4dd4 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Celery-based web crawler admin platform for managing distributed web spiders regardless of languages and frameworks. 
 
+[Demo](http://139.129.230.98:8080)
+
 [中文文档](https://github.com/tikazyq/crawlab/blob/master/README-zh.md)
 
 ## Pre-requisite
diff --git a/crawlab/requirements.txt b/crawlab/requirements.txt
index b7039e85..95fc504c 100644
--- a/crawlab/requirements.txt
+++ b/crawlab/requirements.txt
@@ -1,4 +1,5 @@
 amqp==2.4.1
+apscheduler==3.5.3
 aniso8601==4.1.0
 asn1crypto==0.24.0
 attrs==18.2.0