Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/web-app-wordpress/Administration.md

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+# Administration
+
+## database 
+
+If you use a local instead of a central database you can use the following commands.
+
+### access database
+
+To access the database execute:
+
+```bash
+  docker-compose exec -it database /bin/mysql -u wordpress -p
+```
+
+### upgrade database
+
+To upgrade the database execute:
+
+
+```bash
+  docker-compose exec -it database /bin/mysql_upgrade --user=root --password=
+```
+
+## change database root password
+- https://wolfgang.gassler.org/reset-password-mariadb-mysql-docker/
+- https://www.digitalocean.com/community/tutorials/how-to-reset-your-mysql-or-mariadb-root-password
+
+## shell in docker
+
+To execute the commands in the docker container execute:
+
+```bash
+docker-compose exec -it application /bin/sh
+```
+
+## Test Email
+
+To test the email execute:
+```bash
+docker-compose exec -it application /bin/sh -c 'echo "Test Email" | sendmail -v your-email@example.com'
+```
+