org.texi (Exporting): Better introductory sentence

* org.texi (Exporting): Better introductory sentence.

Thanks to Thomas Dye for this suggestion.

doc/org.texi

@@ -1,4 +1,4 @@
- \input texinfo
+\input texinfo
 @c %**start of header
 @setfilename ../../info/org
 @settitle The Org Manual
@@ -10268,7 +10268,11 @@ documentation for more information.
 @chapter Exporting
 @cindex exporting
 
-Org mode documents can be exported to a variety of other formats.
+The Org mode export facilities can be used to export Org documents or parts
+of Org documents to a variety of other formats.  In addition, these
+facilities can be used with @code{orgtbl-mode} and/or @code{orgstruct-mode}
+in foreign buffers so you can author tables and lists in Org syntax and
+convert them in place to the target language.
 
 ASCII export produces a readable and simple version of an Org file for
 printing and sharing notes.  HTML export allows you to easily publish notes
@@ -10281,12 +10285,10 @@ export can extract entries with deadlines or appointments to produce a file
 in the iCalendar format.
 
 Note that the built-in back-ends come with commands to convert the selected
-region: e.g., in a HTML buffer, @kbd{M-x org-html-convert-region-to-html
-RET} will replace the selected region with its HTML export.  Used in
-combination with @code{orgtbl-mode} and/or @code{orgstruc-mode}, this is a
-powerful way of quickly editing tables and lists in HTML, @LaTeX{},
-@code{Texinfo}, etc.
-
+region: e.g., in a HTML buffer, @kbd{M-x org-html-convert-region-to-html RET}
+will replace the selected region with its HTML export.  Used in combination
+with @code{orgtbl-mode} and/or @code{orgstruc-mode}, this is a powerful way
+of quickly editing tables and lists in HTML, @LaTeX{}, @code{Texinfo}, etc.
 
 @menu
 * The Export Dispatcher::       The main exporter interface