FAQ Section, Docs contributing link, and Hugo Windows Info

[drewf7]

Hi! Loving this project.

Changes:

• Add FAQ Section
• Add FAQ For How To Force Rescans
• Add Link Under Development Setup To This Repo (Because I initially thought this would be in delun/navidrome)
• Add A Warning in the README to help anyone else looking to run this repo on a windows machine

I started out tonight looking for a way to force a rescan of existing albums. I couldn't find information on the docks site, but I did find an answer on reddit that linked to issue 130.

I thought it might be helpful to add that information to the docs site. I hit a bit of a snag building on windows. So I also added some help text for that.

Happy to make changes if you want.

Thanks.

[deluan]

Hey, thanks for the contribution! I'll review the changes and let you know