Remove Old Readme.txt


git-svn-id: https://plugins.svn.wordpress.org/mash-manage-general-website-information/trunk@981680 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add Readme.txt


git-svn-id: https://plugins.svn.wordpress.org/mash-manage-general-website-information/trunk@981681 b8457f37-d9ea-0310-8a92-e5e31aec5664