Update Docker asciidoc (devonfw#1316)

Author: magail

documentation/docker.asciidoc

@@ -81,6 +81,14 @@ To avoid such problems all you need to do is go to the `Preferences` (gear icon)
 
 image::images/Rancher-Desktiop-Networking-Tunnel.png[Rancher-Desktiop-Networking-Tunnel]
 
+==== Extensions
+With version 1.9.0 Extensions were introduced to Rancher Desktop. These are comming from Docker Inc, Suse and others and can be installed directly from inside Rancher Desktop. Some are quite helpful:
+
+* Logs Explorer: Now you can see, filter and search the logs generated by all containers inside of Rancher Desktop
+* Resource usage: Shows you how many resources each and all containers use
+* Disk usage: Disk used by images, containers, volumes and cache
+* Dive In: This extension allows you to see how much space each file in an image uses and how many layers the image has. This helps to create smaller and faster images.
+
 === Requirements
 Running Docker and especially link:kubectl.asciidoc[Kubernetes] on your machine in the background will require quite some resources.
 This will allocate at least 2GB of additional RAM.
@@ -95,16 +103,16 @@ If you use Docker and Kubernetes on your local machine on a daily basis this mak
 
 In case you only use Docker rarely, you can save resources by stopping it when not needed after it has been installed.
 
-==== Mac A1
+==== Mac M1/M2
 Have a look at the https://www.makeuseof.com/tag/add-remove-delay-startup-items-mac/[Instructions on how to set startup programs for MacOS] to make Rancher Desktop run directly after starting up your OS.
 
-In case you have a new Mac with A1 CPU, we automatically download and install the according ARM version of Docker Desktop or Rancher Desktop for macOS.
+In case you have a new Mac with M1/M2 CPU, we automatically download and install the according ARM version of Docker Desktop or Rancher Desktop for macOS.
 However, if you use Docker and search for images you may end up with errors like:
 ```
 docker: no matching manifest for linux/arm64/v8 in the manifest list entries.
 ```
 
-So with A1 CPU you may need to add `--platform linux/x86_64` as option to your Docker command to find the expected container image.
+So with M1/M2 CPU you may need to add `--platform linux/x86_64` as option to your Docker command to find the expected container image.
 
 === Linux
 Docker Desktop isn't available for Linux, but Rancher Desktop can be used as compareable alternative as mentioned before.