package version metadata for external/

This will be used for automated notification of external vulnerability
reports.

Change-Id: Ib9b1608864171808a0ebb0ccfa4626fb26a613a5
diff --git a/README.version b/README.version
new file mode 100644
index 0000000..969cae7
--- /dev/null
+++ b/README.version
@@ -0,0 +1,2 @@
+URL: http://sourceforge.net/projects/jmdns/files/jmdns/JmDNS%203.4.1/jmdns-3.4.1.tgz/download
+Version: 3.4.1