- Added Badge to README.md
- disable debug mode for mariadb

* Update docs

* Fix secret if it's existing

* Moved secrets to a single shared file (for matomo, redis and mariadb), which make it lot easier to use (!BC break)
* Restructured cronjob and deployment
* Updated dependencies

# Conflicts:
#	Chart.yaml
#	templates/cronjob.yaml
#	templates/deployment.yaml

* Added securityContext
* Update Redis & MariaDB Chart
* Update Matomo Version

Database secrets & fixing ingress templatee

See merge request !1

Upgrade mariadb dependency to latest 9.x version, since it has fixed some bugs like using existing auth secret.