patch applied (ghc-6.6/ghc): add :edit to the release notes, and improve the docs a bit

[Simon Marlow]

Fri Sep 29 04:21:08 PDT 2006  Simon Marlow <simonmar at microsoft.com>
  * add :edit to the release notes, and improve the docs a bit

    M ./docs/users_guide/6.6-notes.xml +8
    M ./docs/users_guide/ghci.xml -1 +15