fix bug

yidu/Dockerfile

@@ -3,5 +3,4 @@ FROM tomcat:7
 MAINTAINER chendeben <chendeben@qq.com>
 
 RUN rm -rf /usr/local/tomcat/webapps/ROOT
-ADD server.xml /usr/local/tomcat/conf/server.xml
-ENTRYPOINT ["cd /usr/local/spider && sh start.sh"]
+ADD server.xml /usr/local/tomcat/conf/server.xml