Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>

This change makes a separate section for developers and moves
information about building from source and terraform. From now,
"Getting started" section is meant for operators and all dev-related
stuff should not be included there.

It also updates information about new location of Helm charts and
necessity of using a separate repo for using them (as a developer).

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>

We don't use libbpf anymore. Now we load eBPF programs with Aya.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>

Remove developer-related info, point to the website, add a command for
creating namespace.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>