Yet more minor changes:
(defcustom): Said that `:options' is usually for a hook. Remove
extraneous space in parenthetical remark concerning
`text-mode-hook-identify'. At end, mention other defines, too.
(Beginning a .emacs File): Reverse words about comments so they
parallel numbers of listed semi-colons.
(Text and Auto-fill): Remove extraneous blank line in example.
(Mail Aliases): Remove extraneous blank line in example.
(Keybindings): Reformat as needed with `key' rather than `kbd'.
(Keybindings, Miscellaneous, Mode Line): For small book format, start
section name on top of new page.
(Simple Extension): Replace longer expression with `emacs-major-version'.
Remove comment about `number-to-string' function.
(Miscellaneous): Add filename option, `-H', to `grep' example
(debug, debug-on-entry): Replace `GNU Emacs 22' with `a recent GNU
Emacs'.
(edebug): More properly state where to place point for 'M-x edebug-defun'.