README: Make clear that meta-gplv2 is not needed for this layer

README.md

@@ -4,14 +4,14 @@ This layer can be used to create an Image for SECO North devices without GPLv3 s
 
 ## Build Instructions
 
-The image build without GPLv3 is based on an additional distro:
+The image build without GPLv3 is based on an own distro:
 
 ``MACHINE=imx8mpguf DISTRO=guf-wayland-no-gplv3 BBLAYERS=bblayers_imx8.conf source ./setup-environment build``
 
 The layer provides a bbclass, that can be used to create new images without GPLv3.
-There is also a default image, that has similar functionality as the SECO North default image (guf-image):
+There is also a default image, that has similar functionality as the SECO North default image (seconorth-image):
 
-``bitbake seco-image-nogplv3``
+``bitbake seconorth-image-nogplv3``
 
 For a full example of all build steps, please see the README in the machine layer (https://git.seco.com/seco-ne/yocto/layers/meta-guf-machine).
 
@@ -20,6 +20,10 @@ For a full example of all build steps, please see the README in the machine laye
 A lot of Linux base-utils are released under the GPLv3 license. Because of this, most of these utils are replaced by their BusyBox variant.
 Also, some non-vital software is simply removed from the image while others are missing some functionality because of removed libraries.
 
+There is an additional layer meta-gplv2 that supplies old (some very old) versions of tools before those changed their license to GPLv3.
+In the old versions they are still available as GPLv2.
+The default is not to use this layer of the GPLv3 free distribution, to not get these old versions into the image.
+
 ## New Software and Packages
 
 - dash