Add infos on virtualization in x86_64 arch with qemu_dev_script

Author: henmohr

development.txt

@@ -182,7 +182,7 @@ If everything goes well you should find the produced binaries inside the +bin/+
 
 == Emulating on your computer with qemu
 
-Its possible to emulate a image compiled for x86_64 systems. See link:https://github.com/libremesh/lime-packages/tree/master/tools[script] qemu_dev_start.sh and qemu_dev_stop.sh scripts.
+Its possible to emulate a image compiled for x86_64 architecture. See link:https://github.com/libremesh/lime-packages/tree/master/tools[script] qemu_dev_start.sh and qemu_dev_stop.sh scripts.
 
 [NOTE]
 =========================
@@ -194,6 +194,13 @@ More information link:https://github.com/libremesh/lime-packages/blob/master/TES
 
 =========================
 
+[NOTE]
+=========================
+This script only works with Libremesh version 2020.4 Openwrt version 19.07.10.
+See more link:https://github.com/libremesh/lime-packages/pull/938[here].
+
+=========================
+
 == Submitting Patches
 
 We accept pull requests via GitHub. But patches can also be submitted via the lime-dev link:communication.html[mailing list].