fixed typos;
removed redundant FIXME: it's not our job to regenerate the running site;
worked through first part of the flow to check the git/hub-related instructions, their sequence, arguments etc;
tried to address problem of diff tripping up sh -x;
removed FIXMEs related to checking outcomes -- i intend that failures are caught by sh -x;
went through script and tested. made various changed -- tried to document in source code;