Postgres fixes

Author: sdarwin

README.md

@@ -139,6 +139,11 @@ mailman3_nginx_ssl_certs: |
       # ssl_certificate_key /etc/letsencrypt/live/{{ mailman3_web_url }}/privkey.pem;
 mailman3_sasl_passwd: smtp.mailgun.org [email protected]:555555555
 mailman3_relayhost: smtp.mailgun.org:587
+```
+
+/etc/ansible/host_vars/database.example.org/vars:  
+
+```
 mailman3_database_list:
   - name: mailman3_web
     username: mailman3_web

docs/mailman3-core.md

@@ -76,6 +76,11 @@ mailman3_extra_packages:
   - psycopg2-binary
 mailman3_sasl_passwd: smtp.mailgun.org [email protected]:555555555
 mailman3_relayhost: smtp.mailgun.org:587
+```
+
+/etc/ansible/host_vars/database.example.org/vars:  
+
+```
 mailman3_database_list:
   - name: mailman3_core
     username: mailman3_core

tasks/server.yml

@@ -1,4 +1,9 @@
 ---
+- name: Apt update
+  ansible.builtin.apt:
+    update_cache: true
+  changed_when: false
+
 - name: Set line in /etc/hosts
   ansible.builtin.lineinfile:
     path: /etc/hosts