Fix a few typos in fourth-tier dreams

Sorry, VlasovVitaly.
Blaze's new & improved charcoal kiln!

This scraps the "sit there and watch it burn" charcoal recipe, and
replaces it with Blaze's automated load-light-and-leave-it! kiln.  I
altered the burn-time to six hours as requested in the forum thread.

http://smf.cataclysmdda.com/index.php?topic=6938.0

FWIW the lit kiln throws enough light to read by.  I'm content to leave
that in, but if it's a problem, we can dial it down.
Merge pull request #8063 from KA101/typofix

Fix a few typos in fourth-tier dreams
Merge pull request #8064 from KA101/Blaze'sKiln

Blaze's new & improved charcoal kiln!
Adds community URLs to readme

As VlasovVitaly requested in #8061.

I'm not sure why all the URLs are really necessary, but I suppose it
helps if the mainpage goes down (Git and IRC are on other servers, but
main/forum/wiki all tend to die at the same time).
Merge pull request #8065 from KA101/contactinfo

Adds community URLs to readme