Add GOOS=windows to support building from WSL devcontainer

More robust IP discovery, attempted fix for shayne#17

Ignore docker-desktop WSL distros

fix logic around getting WSL IP, add more event logging

add f.Sync to try and address shayne#9

Update README.md

Always remove eventlog source when calling emove shayne#7

Only write hosts file if change, make Idx => idx

v0.2.0 - complete rewrite

Support multiple IP addresses from hostname -I

If docker is running multiple IP addresses are returned by hostname -I,
we take the first one now.

Also if we update the IP address and it's shorter (in characters) than
the last IP address we have a corrupt wsl line, we now add a couple
empty lines to try and mitigate that.