README: add vim modeline

diff --git a/README b/README
index a3d22ce4a6bb5dca587f8f425a7ad722ce661a2a..c4e81516e53e968f7aa169cba97a09291f6dc21b 100644 (file)
--- a/README
+++ b/README
@@ -188,3 +188,5 @@ 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, see <http://www.gnu.org/licenses/>.
+
+// vim: ft=asciidoc