fix readme

git-svn-id: https://plugins.svn.wordpress.org/gps-map-widget/trunk@1019617 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixed readme

git-svn-id: https://plugins.svn.wordpress.org/gps-map-widget/trunk@1019619 b8457f37-d9ea-0310-8a92-e5e31aec5664
screenshots

git-svn-id: https://plugins.svn.wordpress.org/gps-map-widget/trunk@1019620 b8457f37-d9ea-0310-8a92-e5e31aec5664