update README

README.md

@@ -25,8 +25,10 @@ Included tools are:
 - The exposed port is 3000
 - The user folder is `/config`
 - the user and sudo password is `abc`
-- if docker is installed on your computer, you can run this image, assuming you are in a specific folder that 
-  will be shared with the container at `/config`, with:
+- if docker is installed on your computer, you can run (amd64 or arm64 architecture) this 
+  image, assuming you are in a specific folder that will be shared with the container at 
+  `/config`, with:
+  
   `docker run -p 3000:3000 -v "$(pwd):/config"
     gitlab-research.centralesupelec.fr:4567/my-docker-images/docker-openvscode-server-cpp`