Trivial NEWS copyedits

etc/NEWS

@@ -23,18 +23,36 @@ so we will look at it and add it to the manual.
 
 * Installation Changes in Emacs 24.3
 
+---
+** The default toolkit has been changed to Gtk+ version 3.
+If you don't pass --with-x-toolkit to configure or if you pass
+--with-x-toolkit=gtk or --with-x-toolkit=yes, configure will try to build
+with Gtk+ version 3, and if that fails, try Gtk+ version 2.
+You can explicitly require a specific version by passing
+--with-x-toolkit=gtk2 or --with-x-toolkit=gtk3 to configure.
+
+---
 ** New configure option '--without-all' to disable additional features.
 This disables most of the features that are normally enabled by default.
 
+---
 ** New configure option '--enable-link-time-optimization' to utilize
 an appropriate feature provided by GCC since version 4.5.0.
 
+---
 ** New configure option '--enable-gcc-warnings', intended for developers.
 If building with GCC, this enables compile-time checks that warn about
 possibly-questionable C code.  On a recent GNU system there should be
 no warnings; on older and on non-GNU systems the generated warnings
 may be useful.
 
+---
+** The configuration option '--enable-use-lisp-union-type' has been
+renamed to '--enable-check-lisp-object-type', as the resulting
+Lisp_Object type no longer uses a union to implement the compile time
+check that this option enables.
+
+---
 ** The configure option '--disable-maintainer-mode' has been removed,
 as it was confusingly-named and rarely useful.
 
@@ -60,19 +78,6 @@ directories to the search path.  You must add them yourself if you want them.
 (from the bin and libexec directories, respectively).  The former is
 no longer relevant, the latter is replaced by lisp (in vc-sccs.el).
 
-** The configuration option '--enable-use-lisp-union-type' has been
-renamed to '--enable-check-lisp-object-type', as the resulting
-Lisp_Object type no longer uses a union to implement the compile time
-check that this option enables.
-
----
-** The default toolkit has been changed to Gtk+ version 3.
-If you don't pass --with-x-toolkit to configure or if you pass
---with-x-toolkit=gtk or --with-x-toolkit=yes, configure will try to build
-with Gtk+ version 3, and if that fails, try Gtk+ version 2.
-You can explicitly require a specific version by passing
---with-x-toolkit=gtk2 or --with-x-toolkit=gtk3 to configure.
-
 
 * Startup Changes in Emacs 24.3