Merge pull request #866 from corburn/patch-1

centos remove MAINTAINER

centos/content.md

@@ -36,7 +36,6 @@ Systemd is now included in both the centos:7 and centos:latest base containers,
 
 ```dockerfile
 FROM centos:7
-MAINTAINER "you" <[email protected]>
 ENV container docker
 RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == \
 systemd-tmpfiles-setup.service ] || rm -f $i; done); \