[Encore] Add version support for the --public parameter and a small docker support section

frontend/encore/virtual-machine.rst

@@ -58,6 +58,10 @@ If your Symfony application is running on a custom domain (e.g.
           }
       }
 
+.. versionadded:: 1.9.0
+
+    The ``--public`` option was added in Encore 1.9.0
+
 After restarting Encore and reloading your web page, you will probably see
 different issues in the web console:
 
@@ -92,6 +96,29 @@ connections:
     Make sure to run the development server inside your virtual machine only;
     otherwise other computers can have access to it.
 
+Docker support
+~~~~~~~~~~~~~~
+
+If you are using ``docker``, to set up a ``nodejs`` ``docker-compose`` setup
+that works with the ``localhost:8080`` domain, add this to your
+``docker-compose-yml`` file:
+
+.. code-block:: yaml
+
+    services:
+        nodejs:
+            image: node:16
+            working_dir: /var/www
+            ports:
+                - '8080:8080'
+            volumes:
+                - ./:/var/www:rw,cached
+                - ~/.symfony/certs/default.p12:/root/.symfony/certs/default.p12
+            command: bash -c "yarn && yarn run dev-server --public https://localhost:8080 --host 0.0.0.0 --https"
+
+You may need to load the ``https://localhost:8080`` url once with your browser
+and accept the security exception before our assets can be loaded correctly.
+
 Fix "Invalid Host header" Issue
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~