* Include Alpine Linux installation steps
Add installation instructions for Alpine Linux, including CLI and desktop app setup.
* Revise Alpine instructions
I omitted the fact that the community repo had to be enabled in my original commit
* Apply suggestion from @braginini
* Changes requested by @TechHutTV
Updated installation instructions for Alpine Linux and added commands for starting the NetBird service.
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Co-authored-by: Misha Bragin <bangvalo@gmail.com>