[gtksourceview] docs: porting guide: one chapter per version transition

[Sébastien Wilmet <swilmet src gnome org>]

commit e7dc8bb1c362a89c9566792f4e9031eeba098c84
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jun 16 12:51:52 2017 +0200

    docs: porting guide: one chapter per version transition

 docs/reference/Makefile.am                         |   10 +++++-----
 docs/reference/gtksourceview-docs.xml.in           |    5 ++++-
 ...{porting-guide.xml => porting-guide-3-to-4.xml} |    4 ++--
 3 files changed, 11 insertions(+), 8 deletions(-)
---
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index 32fc503..a548352 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -72,11 +72,11 @@ MKDB_OPTIONS = --xml-mode --output-format=xml
 HTML_IMAGES =
 
 # Extra XML files that are included by $(DOC_MAIN_SGML_FILE)
-content_files =                        \
-       intro.xml               \
-       lang-tutorial.xml       \
-       lang-reference.xml      \
-       porting-guide.xml       \
+content_files =                                \
+       intro.xml                       \
+       lang-tutorial.xml               \
+       lang-reference.xml              \
+       porting-guide-3-to-4.xml        \
        style-reference.xml
 
 # Extra options to supply to gtkdoc-fixref
diff --git a/docs/reference/gtksourceview-docs.xml.in b/docs/reference/gtksourceview-docs.xml.in
index c87486a..990dde8 100644
--- a/docs/reference/gtksourceview-docs.xml.in
+++ b/docs/reference/gtksourceview-docs.xml.in
@@ -98,7 +98,10 @@
     <xi:include href="style-reference.xml"/>
   </part>
 
-  <xi:include href="porting-guide.xml"/>
+  <part id="porting-guide">
+    <title>Porting Guide</title>
+    <xi:include href="porting-guide-3-to-4.xml"/>
+  </part>
 
   <part id="annexes">
     <title>Annexes</title>
diff --git a/docs/reference/porting-guide.xml b/docs/reference/porting-guide-3-to-4.xml
similarity index 99%
rename from docs/reference/porting-guide.xml
rename to docs/reference/porting-guide-3-to-4.xml
index fe63a26..0729ed7 100644
--- a/docs/reference/porting-guide.xml
+++ b/docs/reference/porting-guide-3-to-4.xml
@@ -7,7 +7,7 @@
  %gtkdocentities;
 ]>
 
-<part id="porting-guide">
+<chapter id="porting-guide-3-to-4">
   <title>GtkSourceView 3 -> 4 Porting Guide</title>
 
   <refsect1>
@@ -146,4 +146,4 @@
       </listitem>
     </itemizedlist>
   </refsect1>
-</part>
+</chapter>