Add short section on DDL example scripts

src/site/docbook/reference/schema-appendix.xml

@@ -38,6 +38,19 @@
       </imageobject>
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+    <section>
+      <title>Example DDL Scripts</title>
+
+      <para>The root of the Spring Batch Core JAR file contains
+      example scripts tp create the relational tables for a number of
+      database platforms (which are in turn auto-detected by the job
+      repository factory bean or namespace equivalent).  These scripts
+      can be used as is, or modified with additional indexes and
+      constraints as desired.  The file names are in the
+      form <literal>schema-*.sql</literal>, where "*" is the short
+      name of the target database platform.</para>
+    </section>
+
     <section>
       <title>Version</title>