Fixed Alpine “No hostname” instructions and a typo

[Crestwave]

I removed the instructions in troubleshooting.md altogether since it was telling you to use them if you followed strata.md, basically having you repeat it when doing so doesn’t change anything.

[paradigm]

Thanks! That's clearly the intended route here rather than what I had.

However, I'd interpret

 - rc-update add hostname default

to refer to a rc-update from something other than the in-progress alpine stratum, which I don't think was your intent here. My guess is you meant:

 - chroot /bedrock/strata/~(alpine~) rc-update add hostname default

I did a quick test run with that worked for me. If you make that change I'll be happy to merge this in. If you left the chroot off purposefully, let me know what I'm missing and we can progress from there.

[Crestwave]

My bad! I rebooted before I did this, so Alpine was already up and running, and I overlooked the fact that you could have another OpenRC installation.

[paradigm]

Thanks :)