Comment the script a bit more

templates/run.sh

@@ -1,6 +1,11 @@
 #!/bin/bash
 #
-# Run without argument for IPv4, and with any argument for IPv6..
+# Measurement script for the dn42 peer finder, see http://peerfinder.polynome.dn42
+# Dependencies: curl, sed, ping
+#
+# Run without argument for IPv4-only, and with an argument for IPv6-only, e.g.
+#
+#   ./script.sh ipv6
 
 # Put your UUID here, and keep it secret!
 UUID="{{ uuid|default('00000000-0000-0000-0000-000000000000') }}"