[gtksourceview] Doc: explain the "v2" for the language definition file format

[Sébastien Wilmet <swilmet src gnome org>]

commit 62cc1ec0d713cbba4c59bc670f67a109ee5498e0
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat May 18 23:00:40 2013 +0200

    Doc: explain the "v2" for the language definition file format

 docs/reference/lang-reference.xml |    9 +++++++++
 docs/reference/lang-tutorial.xml  |    9 +++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/lang-reference.xml b/docs/reference/lang-reference.xml
index 3ac74eb..140f9a5 100644
--- a/docs/reference/lang-reference.xml
+++ b/docs/reference/lang-reference.xml
@@ -12,6 +12,15 @@ Reference to the GtkSourceView language definition file format
 
 <refsect1>
 <title>Overview</title>
+
+<note>
+  <para>
+    The version 2 here refers to the language definition file format,
+    not to the version of GtkSourceView. So this reference is suitable
+    for GtkSourceView 2 and 3.
+  </para>
+</note>
+
 <para>
 This is an overview of the Language Definition XML format, describing the
 meaning and usage of every element and attribute.  The formal definition is
diff --git a/docs/reference/lang-tutorial.xml b/docs/reference/lang-tutorial.xml
index 2b2e91d..6157cec 100644
--- a/docs/reference/lang-tutorial.xml
+++ b/docs/reference/lang-tutorial.xml
@@ -12,6 +12,15 @@ Guide to the GtkSourceView language definition file format
 
 <refsect1 id="tutorial">
 <title>A language definition for the C language</title>
+
+<note>
+  <para>
+    The version 2 here refers to the language definition file format,
+    not to the version of GtkSourceView. So this tutorial is suitable
+    for GtkSourceView 2 and 3.
+  </para>
+</note>
+
 <para>
 To describe the syntax of a language GtkSourceView uses an XML format which
 defines nested context to be highlighted. Each context roughly corresponds