Add a note (step) showing that you can load gdbe using kldload(8);
at this time there is no loader.conf variable in defaults/loader.conf in 6,
note that.
Remove some old cruft and reword near sentence to keep flow going smoothly.
Two spaces between the end of a sentence and the beginning of a new sentence.

PR: 86733
Submitted by: Josh Paetzel (patch rewritten by me)