Add arm64 docker command to README

generators/common/templates/README.md.jhi.ejs

@@ -399,7 +399,13 @@ You can also fully dockerize your application and all the services that it depen
 To achieve this, first build a docker image of your app by running:
 
 ```
-<% if (buildToolMaven) { %>./mvnw -Pprod verify jib:dockerBuild<% } %><% if (buildToolGradle) { %>./gradlew bootJar -Pprod jibDockerBuild<% } %>
+npm run java:docker
+```
+
+Or build a arm64 docker image when using an arm64 processor os like MacOS with M1 processor family running:
+
+```
+npm run java:docker:arm64
 ```
 
 Then run:
@@ -408,6 +414,8 @@ Then run:
 docker-compose -f src/main/docker/app.yml up -d
 ```
 
+When running Docker Desktop on MacOS Big Sur or later, consider enabling experimental `Use the new Virtualization framework` for better processing performance ((disk access performance is worse)[https://github.com/docker/roadmap/issues/7]).
+
 For more information refer to [Using Docker and Docker-Compose][], this page also contains information on the docker-compose sub-generator (`jhipster docker-compose`), which is able to generate docker configurations for one or several JHipster applications.
 
 ## Continuous Integration (optional)