readme: Update and clean-up

- Updated old infos
- Renamed G&F to SECO North
- Updated URLs
- Fixed some spelling errors


(cherry picked from commit 1ab3758a)

README.md

-Yocto Dunfell repository for Garz & Fricke Platforms
+Yocto Dunfell Repository for SECO North Platforms
 ======================================================
 
-This layer provides support for Garz & Fricke platforms to be used with the
+This layer provides support for SECO North platforms to be used with the
 Yocto Project.
 
 This layer depends on:
@@ -14,48 +14,48 @@ Description
 ------------------------------------------------------
 
 These repositories contain all the source code and metadata to build images and
-packages for Garz & Fricke devices based on the NXP i.MX6, i.MX6ULL and i.MX8MM
-processors.
+packages for SECO North devices based on the NXP i.MX6, i.MX6ULL, i.MX8MM and
+i.MX8MP processors.
 
-The build system is based on the Yocto project, further information and
-documentation can be found at http://docs.yoctoproject.org/. The Yocto project
+The build system is based on the Yocto Project, further information and
+documentation can be found at http://docs.yoctoproject.org/. The Yocto Project
 uses so called 'layers' containing the metadata to build all needed packages,
 while the package sources are downloaded during the build.
 
-The Garz & Fricke Yocto is based on the base layers from poky
-(git://git.yoctoproject.org/poky) and openembedded
-(git://git.openembedded.org/meta-openembedded). QT5 support is included the
+The SECO North Yocto is based on the base layers from Poky
+(git://git.yoctoproject.org/poky) and OpenEmbedded
+(git://git.openembedded.org/meta-openembedded). Qt5 support is included in the
 meta-qt5 layer (git://code.qt.io/yocto/meta-qt5).
 
-For the ```imx8m``` platform Tanaro the BSP from Freescale
+For the ```imx8m``` platforms the BSP from Freescale
 (git://github.com/Freescale/meta-freescale) is included for GPU and VPU drivers
 and tools.
 
-For the ```imx6``` based platforms (SANT*) GPU and VPU drivers the etnaviv driver is
+For the ```imx6``` based platforms (SAN*) GPU and VPU drivers the etnaviv driver is
 used, included in the mainline opensource layers.
 
-This Garz & Fricke specific part comes as two parts layers:
+The SECO North specific parts come as two layers:
 
 * ```meta-guf-machine```
-  (https://gitlab.com/garz-fricke/yocto/layers/meta-guf-machine)
+  (https://git.seco.com/seco-ne/yocto/layers/meta-guf-machine)
 
-    This part is intended to hold all recipes needed to build the BSP for
-    Garz & Fricke Boards
+    This part is intended to contain all recipes needed to build the BSP for
+    SECO North boards
 
 * ```meta-guf-distro```
-  (https://gitlab.com/garz-fricke/yocto/layers/meta-guf-distro)
+  (https://git.seco.com/seco-ne/yocto/layers/meta-guf-distro)
 
-    This part is intended to hold recipes that make up the Garz & Fricke 
+    This layer is intended to contain recipes that make up the SECO North 
     distribution including the base image: guf-image.
 
-The Garz & Fricke manifest repository
-(https://gitlab.com/garz-fricke/yocto/manifest) contains the so called manifest
+The SECO North manifest repository
+(https://git.seco.com/seco-ne/yocto/manifest) contains the so-called manifest
 (default.xml) for the repo tool (https://gerrit.googlesource.com/git-repo). The
-manifest file contains a list of all layers and there specific revisions needed
-to build the image for Garz&Fricke devices, the repo tool itself reads this
-manifest and handles the clone and directory setup for you.
+manifest file contains a list of all layers and their specific revisions needed
+to build the image for SECO North devices, the repo tool itself reads this
+manifest and handles the download and directory setup for you.
 
-Getting started
+Getting Started
 =====================================================
 
 Preparing the host system
@@ -63,19 +63,17 @@ Preparing the host system
 
 There are some requirements to the host system. 
 
-
-
 ### Ubuntu 20.04.2 
 
-Tested distribution is currently **Ubuntu 20.04.2  LTS**.
+Tested distribution is currently **Ubuntu 20.04.2 LTS**.
 ISO-Installation-Image: https://releases.ubuntu.com/20.04/ubuntu-20.04.2.0-desktop-amd64.iso
 
-This should work as virtual machine (Virtual box ...) or baremetal installation.
+This should work as virtual machine (VirtualBox, Qemu, etc.) or bare-metal installations.
 
 #### Yocto related base software
 
 Needed tools are listed in the yocto documentation 
-http://docs.yoctoproject.org/brief-yoctoprojectqs/brief-yoctoprojectqs.html#compatible-linux-distribution:
+https://docs.yoctoproject.org/ref-manual/system-requirements.html#required-packages-for-the-build-host:
 
 Execute the following commands to install them:
 ```sh
@@ -91,17 +89,17 @@ Additionally needed:
 sudo apt install -y quilt curl flex bison libssl-dev
 ```
 
-#### Development tools
+#### Development Tools
 
 ```sh
 sudo apt install git minicom gdb-multiarch crossbuild-essential-armhf \
     meld gedit nano cscope quilt qtcreator
 ```
 
-#### Install repo tool
+#### Install the Repo Tool
 
 If available the tool can also be installed from the distributions package
-manager. This directly downloads the latest version from google.
+manager. This directly downloads the latest version from Google.
 
 ```sh
 mkdir ~/bin # once
@@ -111,9 +109,9 @@ echo "export PATH=${PATH}:~/bin" >> ~/.bashrc # once
 source ~/.bashrc
 ```
 
-### Gitlab access
+### GitLab Access
 
-To download source code from gitlab the generation of a ssh key pair is needed.
+To download source code from GitLab the generation of a ssh key pair is needed.
 
 SSH key for GitLab (https://docs.gitlab.com/ee/ssh/README.html#generating-a-new-ssh-key-pair):
 
@@ -123,31 +121,31 @@ cat ~/.ssh/id_ed25529.pub
 (copy and add the key content to your GitLab Profile User Settings -> SSH keys)
 ```
 
-### Local Git setup:
+### Local Git Setup
 
 ```sh
 git config --global user.name "Surname Name" # use your name instead
 git config --global user.email name.provider.com # use your email instead
 ```
 
-Download the Garz & Fricke Yocto layers
+Download the SECO North Yocto layers
 ------------------------------------------------------
 
 The steps are to create a local build dir and use repo to download all needed
-files. After that the build directory gets setup for one specific machine
-(```imx6guf```, ```imx6ullguf``` or ```imx8mguf```) and distribution
-(```guf-wayland```)
+files. After that, the build directory is set up for one specific machine
+(```imx6guf```, ```imx6ullguf```, ```imx8mguf``` or ```imx8mpguf```) and distribution
+(```guf-wayland```).
 
-### Download source code
+### Download Source Code
 
 ```sh
 mkdir -p ~/projects/yocto-dunfell
 cd ~/projects/yocto-dunfell
-repo init -u ssh://git@gitlab.com/garz-fricke/yocto/manifest.git -b dunfell
+repo init -u ssh://git@git.seco.com:4444/seco-ne/yocto/manifest.git -b dunfell
 repo sync
 ```
 
-The repo tool stores its meta data in a hidden subdirectory called ```.repo```.
+The repo tool stores its metadata in a hidden subdirectory called ```.repo```.
 The manifest file is stored at ```.repo/manifests/default.xml``` and is used 
 for the sync command which actually downloads the sources.
 
@@ -182,25 +180,31 @@ yocto-dunfell$ tree -L 2 -a
 
 To get the build environment ready run
 
-for Garz & Fricke i.MX6Q/DL platfroms:
+For SECO North i.MX6Q/DL platforms:
 
 ```sh
 MACHINE=imx6guf DISTRO=guf-wayland source ./setup-environment build
 ```
 
-for Garz & Fricke i.MX6ULL platforms:
+For SECO North i.MX6ULL platforms:
 
 ```sh
 MACHINE=imx6ullguf DISTRO=guf-wayland source ./setup-environment build
 ```
 
-for Garz & Fricke i.MX8M platforms (Tanaro):
+For SECO North i.MX8M platforms (TANARO):
 
 ```sh
 MACHINE=imx8mguf DISTRO=guf-wayland source ./setup-environment build
 ```
 
-Build the default Garz & Fricke image
+For SECO North i.MX8MP platforms (Trizeps VIII+):
+
+```sh
+MACHINE=imx8mpguf DISTRO=guf-wayland source ./setup-environment build
+```
+
+Build the default SECO North image
 
 ```sh
 bitbake guf-image
@@ -209,18 +213,18 @@ bitbake guf-image
 Installation
 ---------------------------------------------------
 
-### imx6 based machines
+### i.MX6 Based Machines
 
 After the image was built the files are located under
-```yocto-dunfell/build/tmp/deploy/images/imx6guf/```. The files needed are
-installation file ```fng_install.sh``` and the root file system
-```guf-image-imx6guf.tar.gz```. The files can be used in a Flash-N-Go System
+``yocto-dunfell/build/tmp/deploy/images/imx6guf/``. The files needed are
+installation file ``fng_install.sh`` and the root file system
+``guf-image-imx6guf.tar.gz``. The files can be used in a Flash-N-Go System
 installation process. See
 http://support.garz-fricke.com/products/Santaro/Flash-N-Go/FNGSystem/FNGSystem-15.1-r8673/Flash-N-Go-System-15.1-r8673-Manual.pdf
-for more informatiuon.
+for more information.
 
-### imx8 based machines (Tanaro)
+### i.MX8M Based Machines
 
 See release page:
-https://gitlab.com/garz-fricke/yocto/layers/meta-guf-distro/-/releases/0.1
+https://git.seco.com/seco-ne/yocto/layers/meta-guf-distro/-/releases/0.1