Doc: use section for essay, doc policy.

diff --git a/Documentation/essay/engraving.itely b/Documentation/essay/engraving.itely
index 10ffea93b7604ecc4245f4e95ad4b0e2d83511bc..971afb27207064a577a1dd6aa9576d8554176f03 100644 (file)
--- a/Documentation/essay/engraving.itely
+++ b/Documentation/essay/engraving.itely
@@ -35,7 +35,7 @@ such beautiful sheet music.
 @end menu
 
 @node The LilyPond story
-@unnumberedsec The LilyPond story
+@section The LilyPond story
 
 Long before LilyPond had been used to engrave beautiful performance
 scores, before it could create university course notes or even simple
@@ -143,7 +143,7 @@ Henle no. 666, @copyright{}2000:
 @end iftex
 
 @node Engraving details
-@unnumberedsec Engraving details
+@section Engraving details
 
 @cindex engraving
 @cindex typography, music
@@ -538,7 +538,7 @@ to see and love to play from.
 
 
 @node Automated engraving
-@unnumberedsec Automated engraving
+@section Automated engraving
 
 @cindex engraving, automated
 @cindex automated engraving
@@ -1047,7 +1047,7 @@ note head symbol is changed during the music fragment.
 
 
 @node What symbols to engrave?
-@unnumberedsec What symbols to engrave?
+@section What symbols to engrave?
 
 @cindex engraving
 @cindex typography
@@ -1248,7 +1248,7 @@ Internals Reference: @rinternals{Contexts}.
 
 
 @node Music representation
-@unnumberedsec Music representation
+@section Music representation
 
 @cindex syntax
 @cindex recursive structures
@@ -1347,7 +1347,7 @@ the source code.
 
 
 @node Example applications
-@unnumberedsec Example applications
+@section Example applications
 
 @cindex simple examples
 @cindex examples, simple
@@ -1472,7 +1472,7 @@ TODO: add extra chapter for computer aesthetics?
 
 @page
 @node Appendix
-@unnumberedsec Appendix
+@section Appendix
 
 This appendix contains four reference engravings and two
 software-engraved versions of Bach's Fugue in G minor from the