Add migration note.

README.md

@@ -1,5 +1,7 @@
 # Rophako
 
+> :rotating_light: **This repo has migrated:** https://git.kirsle.net/apps/rophako
+
 A simplistic content management system designed for
 [kirsle.net](http://www.kirsle.net/).
 
@@ -37,4 +39,4 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-```
+```