README updated

README.md

@@ -14,7 +14,17 @@ ansible-playbook live2dev.yml -i "${SERVERNAME}," -e "hostname=${SERVERNAME}"
 See also [the wiki documentation](https://wiki.coops.tech/wiki/CoTech_WordPress)
 and the [GitHub project](https://github.com/cotech/website).
 
-## Discourse
+## Discourse Install
+
+To [upgrade Discourse](https://meta.discourse.org/t/how-do-i-manually-update-discourse-and-docker-image-to-latest/23325) 
+you can use this Playbook:
+
+```bash
+export SERVERNAME="community.coops.tech"
+ansible-playbook -u root discourse_upgrade.yml -i "${SERVERNAME}," -e "hostname=${SERVERNAME}"
+```
+
+## Discourse Install
 
 Ansible Playbooks to install
 [Docker](https://store.docker.com/editions/community/docker-ce-server-debian)