Improve 3rd-party Apache SOLR setup in additional-services.md (#2670)…

… [skip ci][ci skip]

docs/users/extend/additional-services.md

@@ -10,11 +10,12 @@ This recipe adds an Apache Solr container to a project. It will set up a solr co
 
 #### Installation
 
-* Copy [docker-compose.solr.yaml](https://github.com/drud/ddev/tree/master/pkg/servicetest/testdata/TestServices/docker-compose.solr.yaml) to the .ddev folder for your project.
-* The recommended Solr version is: `image: solr:8`, from [hub.docker.com](https://hub.docker.com/_/solr/).
-* Create the folder path .ddev/solr/conf.
-* Copy/extract the Solr configuration files for your project into `.ddev/solr/conf`.
-* Ensure that the configuration files are present before running `ddev start`.
+1. Copy [docker-compose.solr.yaml](https://github.com/drud/ddev/tree/master/pkg/servicetest/testdata/TestServices/docker-compose.solr.yaml) to the .ddev folder for your project.
+    * Solr version can be changed by updating this line `image: solr:8` in `docker-compose.solr.yaml` file.
+    * [List of all Solr versions supported](https://hub.docker.com/_/solr/).
+2. Create the folder path .ddev/solr/conf.
+    * If needed, you may copy/extract the Solr configuration files for your project into `.ddev/solr/conf`. Ensure that the configuration files are present before running `ddev start`.
+3. Run `ddev start` or `ddev restart` if your project is already running.
 
 ##### Drupal8-specific extra steps