Update Solr doc to match the README.md
Update Solr doc to match the README.md

Fixes https://github.com/docker-library/docs/issues/1396

Bonitasoft-Community/docker_docs,docker-solr/docs,avoinea/docs,docker-library/docs,docker-solr/docs,infosiftr/docker-library-docs,crate/docker-docs,dinogun/docs,Lightstreamer/docs,docker-library/docs,Lightstreamer/docs,odoo/docker-docs,31z4/docs,infosiftr/docker-library-docs,jetty-project/docker-docs,31z4/docs,dinogun/docs,tilosp-docker/library-docs,avoinea/docs,tilosp-docker/library-docs,Bonitasoft-Community/docker_docs,nats-io/docker-docs,crate/docker-docs,odoo/docker-docs,jetty-project/docker-docs,nats-io/docker-docs