Update documentation

Add command to upgrade installed packages

fix: Dockerfile to reduce vulnerabilities (#18)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE316-OPENSSL-5661567
- https://snyk.io/vuln/SNYK-ALPINE316-OPENSSL-5661567

Co-authored-by: snyk-bot <[email protected]>

Feat/multi arch building (#14)

* Fix the auto-build for multi-arch

Multi arch building

Updates and multi-arch enablement (#10)

* Adding support for multi-arch building

* Debugging multi-arch build

* Debugging multi-arch build

* Debugging multi-arch build

* Debugging multi-arch build

* Multi arch building

Update VERSION

Adding port support and fix Lighttpd PID reference

Merge pull request #3 from fboaventura/mrtg-rrd

Enable mrtg-rrd and SNMPv1 support

Bumped version