Update README.md

[chevybowtie]

Add Alpine and Nginx quick setup

Description

This is just a README update on how to quickly setup Homer on Alpine Linux using Nginx. This is perfect for running Homer in a tiny Linux Container (LXC)

Type of change

• Documentation only

Checklist:

• I've read & comply with the contributing guidelines
• I have tested my code for new features & regressions on both mobile & desktop devices, using the latest version of major browsers.
• I have made corresponding changes to the documentation (README.md).
• I've checked my modifications for any breaking changes, especially in the config.yml file

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