Fix minor issues in nextcloud code blocks
Fix minor issues in nextcloud code blocks

Lightstreamer/docs,jetty-project/docker-docs,Bonitasoft-Community/docker_docs,crate/docker-docs,infosiftr/docker-library-docs,crate/docker-docs,Bonitasoft-Community/docker_docs,nats-io/docker-docs,nats-io/docker-docs,docker-library/docs,Lightstreamer/docs,infosiftr/docker-library-docs,docker-library/docs,jetty-project/docker-docs